
The Louisiana Purchase of 1803 saw the United States double in size, but it also caused a constitutional crisis for President Thomas Jefferson. The purchase of the territory from France for $15 million was not explicitly authorized by the Constitution, and Jefferson, a strict constructionist, had to decide whether to ignore the legalistic interpretation of the Constitution or forgo the purchase. While the deal was popular, Jefferson's Federalist rivals opposed it, arguing that it exceeded presidential powers. Jefferson decided to proceed with the purchase, and on October 20, 1803, the Senate ratified the treaty by a vote of 24-7. This decision, though never questioned in court, set a precedent for presidential power and the interpretation of the Constitution.
| Characteristics | Values |
|---|---|
| Date of the Louisiana Purchase | October 20, 1803 |
| Size of the purchased territory | 830,000 square miles or 530,000,000 acres |
| Number of modern US states encompassed by the purchased territory | 15 |
| States formed from the purchased territory | Louisiana, Arkansas, Missouri, Iowa, Oklahoma, Kansas, Nebraska, North Dakota, South Dakota, parts of Minnesota, New Mexico, Montana, Wyoming, and Colorado |
| Purchase price | $15 million |
| Parties to the treaty | United States and France |
| US President at the time | Thomas Jefferson |
| French ruler at the time | Napoleon Bonaparte |
| US negotiators | James Monroe, Robert Livingston (American minister in Paris), and James Madison (Secretary of State) |
| Constitutional issue | The US Constitution did not explicitly empower the president to acquire territory or make large property purchases from foreign governments. |
| Jefferson's approach | Jefferson advocated for a strict interpretation of the Constitution but chose to forego a constitutional amendment due to public support for the purchase and the strategic value of the territory. |
| Senate ratification vote | 24-7 in favor |
| House of Representatives action | Passed an act enabling Jefferson to take possession and govern Louisiana, appropriating the necessary funds. |
| Federalist opposition | Argued that the purchase lacked specific constitutional authorization and set a dangerous precedent. |
| Public opinion | The purchase was generally popular due to the perceived benefits of acquiring Louisiana. |
Explore related products
What You'll Learn

Jefferson's constitutional dilemma
The Louisiana Purchase of 1803 was a seminal moment for the United States. The acquisition of the territory doubled the size of the nation, encompassing 15 states and 530 million acres. The treaty was promoted by President Thomas Jefferson, who wished to avert a potential armed conflict with France, which had taken possession of Louisiana from Spain in 1800. Jefferson sent James Monroe to join Robert Livingston in France to negotiate the purchase of the territory.
However, the Louisiana Purchase also presented Jefferson with a constitutional dilemma. Jefferson had risen to prominence as a defender of the Constitution, advocating for a strict constructionist interpretation. He believed that specific powers reserved for the President and the Executive Branch needed to be explicitly spelled out in the Constitution. Yet, nowhere in the Constitution could he find authorization for the government to purchase new territory. Jefferson initially drafted a constitutional amendment to specifically authorize the purchase, but he was concerned that this would slow down the process and give France or Spain an excuse to back out of the deal.
Jefferson's political opponents, the Federalists, were quick to point out the apparent contradiction between his past defence of the Constitution and his willingness to exceed its bounds in the case of the Louisiana Purchase. They objected to his exercise of executive authority without specific constitutional authorization. Delaware Senator Samuel White, for instance, warned that relocating settlers far away from the capital might alienate their affections for the Union. However, Jefferson believed that while presidents might need to act quickly in a crisis, they should still be subject to congressional oversight as required by the Constitution. To resolve his dilemma, Jefferson decided to seek ex post facto congressional approval for the Louisiana Purchase. He reasoned that if the Senate ratified the treaty and the House of Representatives appropriated the necessary funds, then the treaty would be legally binding and his actions would be vindicated.
On October 20, 1803, the Senate voted to ratify the treaty by a margin of 24 to 7, and it was signed on October 31. The House of Representatives also passed an act enabling Jefferson to take possession of and govern Louisiana, appropriating the necessary funding. The Louisiana Purchase was never questioned in court, and Jefferson avoided a direct confrontation with his cousin and political rival, Supreme Court Chief Justice John Marshall. However, the constitutional debate surrounding the purchase highlighted the tensions between strict constructionist and expansive interpretations of presidential power.
US Constitution vs Britain: A Comparison
You may want to see also

Federalist opposition
The Louisiana Purchase caused a constitutional crisis because it was unclear whether President Thomas Jefferson had the constitutional authority to make the deal. The purchase of the territory from France doubled the size of the United States, encompassing 530 million acres of territory that would become 15 states.
Jefferson himself had always advocated for a strict interpretation of the Constitution, and he could find no specific constitutional authorization for the purchase. The ability to buy property from foreign governments was not among the powers listed in the Constitution, and Jefferson's political opponents, the Federalists, were quick to point this out.
The Federalist opposition to the Louisiana Purchase was twofold. Firstly, they objected to Jefferson's exercise of executive authority without explicit constitutional authorization. Delaware Senator Samuel White, for example, warned that relocating settlers thousands of miles away from the capital might alienate their affections for the Union. Secondly, the Federalists argued that the purchase amounted to an "unconscionable bargain," aiding France in its designs against Great Britain. They questioned the value of the land and mocked accounts of its supposed natural riches.
Despite their objections, the Federalist opposition was limited. The Louisiana Treaty was popular throughout the United States, and the Senate ratified the treaty by a vote of 24 to 7. Jefferson's pragmatism and concern for expediency led him to conclude that there was insufficient time to amend the Constitution. He believed that congressional ratification of the treaty and the appropriation of funds would make his actions legally binding and vindicate his position.
The Constitution's Impact: Shaping America's Destiny
You may want to see also

Presidential powers
The Louisiana Purchase of 1803 was a highly significant moment in US history, and a notable exercise of presidential power by Thomas Jefferson. The purchase of the Louisiana Territory from France doubled the size of the United States, adding territory that would become 15 states.
Jefferson had a strict interpretation of the Constitution, believing that specific powers reserved for the President must be explicitly stated in the document. He had risen to prominence as a defender of the Constitution, and his previous stance had been that the government had no power to acquire new territory. However, Jefferson also believed that presidents might need to act quickly in a crisis, and that their actions could be vindicated by subsequent congressional oversight, as required by the Constitution.
In the case of the Louisiana Purchase, Jefferson's primary motivation was to prevent the territory from falling into French hands, as this would give them control of the vital Mississippi River. He also understood the potential for agricultural expansion that acquiring this territory would offer, and how this could help sustain the American character. Jefferson knew that a constitutional amendment to authorize the purchase would take time, and there was a risk that Napoleon would change his mind or that Spain might object to the expansion of its continental rival.
Jefferson's Federalist rivals opposed the purchase on constitutional grounds, arguing that there was no specific authorization for the President to acquire territory in this way. However, the treaty was popular throughout the United States, and Jefferson was aided by this public support. The Senate ratified the treaty by a vote of 24-7, and the House of Representatives passed an act enabling Jefferson to take possession of and govern Louisiana, providing the necessary funds.
Our Constitution: Capitalism's Friend or Foe?
You may want to see also
Explore related products

Public opinion
The Louisiana Purchase, which doubled the size of the United States, was a highly popular move among the American public. The treaty with France was seen as a diplomatic triumph, and newspapers across the country welcomed the agreement. The purchase was also seen as a strategic move, as it would help the United States remain an agrarian republic, and it would also prevent France from controlling the Mississippi River, which could have closed off a vital transportation route to the American West.
However, there was vocal opposition to the purchase from the minority Federalist Party, primarily based in the northeastern states. Federalists argued that the purchase was unconstitutional, as the ability to buy property from foreign governments was not among the powers listed in the Constitution. They believed that President Thomas Jefferson had overstepped his constitutional authority as president in buying the land. Some Federalists also argued that the residents of Louisiana were unfit for republican government and that their admission to the Union would tilt the balance of political power towards the slaveholding South. Additionally, they were concerned that buying land from France would alienate Great Britain, whom they wanted as a close ally.
Despite these objections, the Senate ratified the treaty by a margin of 24 to 7, with eight days later the House of Representatives passing an act enabling Jefferson to take possession of and govern Louisiana. Jefferson himself acknowledged the strategic importance of the purchase, but he also harboured doubts about whether the Constitution authorized the president to acquire territory in this way. He took a strict, literal view of constitutional powers, believing that the president only had the powers specifically granted by the Constitution. However, Jefferson's closest advisors settled the issue of constitutionality, pointing out that the Constitution gave the president the exclusive right to enter into treaties with foreign governments and leaders.
Ben Franklin's Role in Shaping the US Constitution
You may want to see also

Senate ratification
The Louisiana Purchase of 1803 was a treaty with France, promoted by President Thomas Jefferson, that doubled the size of the United States. The purchase encompassed 530,000,000 acres of territory in North America, which would eventually encompass 15 states, including Louisiana, Arkansas, Missouri, Iowa, Oklahoma, Kansas, Nebraska, North and South Dakota, and parts of Minnesota, New Mexico, Montana, Wyoming, and Colorado.
The Senate ratification process for the Louisiana Purchase treaty began on October 20, 1803, when the Senate voted 24-7 in favour of ratifying the treaty. The debate in the Senate lasted only two days, and the treaty was signed on October 31, 1803. The seven senators who opposed the treaty, all Federalists, objected to Jefferson's exercise of executive authority without specific constitutional authorization. Delaware senator Samuel White warned that relocating settlers thousands of miles away from the capital might alienate their affections for the Union.
However, supporters of the treaty, including Senator James Jackson, a Jeffersonian from Georgia, argued that the purchase presented a unique opportunity that should not be missed. He predicted that the settlers would transform the land into a "seat of science and civilization". Despite the opposition, two-thirds of the Senate ultimately agreed to ratify the treaty.
President Jefferson himself had doubts about whether the Constitution authorized the president to acquire territory through such a transaction. Jefferson had risen to prominence as a defender of the Constitution and believed in a strict interpretation of its powers. He understood that the ability to buy property from foreign governments was not among the powers listed in the Constitution. However, he also recognized the strategic importance of acquiring New Orleans and the potential military danger posed by France if they controlled the Mississippi River.
To address the constitutional concerns, Jefferson initially considered drafting an amendment to the Constitution specifically authorizing the purchase. However, he was concerned that this might slow down the Senate's ratification process and give France or Spain an excuse to back out of the deal. He also worried that it might not secure the approval of three-quarters of the states. Instead, Jefferson took a pragmatic approach, reasoning that if the Senate ratified the treaty and the House of Representatives appropriated the necessary funds, his actions would be vindicated.
Impeachment and Re-election: What the Constitution Says
You may want to see also
Frequently asked questions
The Louisiana Purchase caused a constitutional crisis as there was no provision in the Constitution empowering the government to purchase new territory. Jefferson, a strict constructionist, was aware of this but decided to ignore the legalistic interpretation of the Constitution.
The Louisiana Purchase treaty was ratified by the Senate on October 20, 1803, with a vote of 24-7. The treaty was signed on October 31, 1803. The purchase was never questioned in court.
The Louisiana Purchase doubled the size of the United States, adding territory that would become 15 states: Louisiana, Arkansas, Missouri, Iowa, Oklahoma, Kansas, Nebraska, North Dakota, South Dakota, and parts of Minnesota, New Mexico, Montana, Wyoming, and Colorado.

























