Floyd was not convicted of treason however and returned to public life after several years working to redeem his reputation.
[6] By the end of his term he had become too involved in the Aaron Burr Conspiracy to run for re-election and was succeeded by James Beggs as Clark County's representative.
[8] The company, believed to have had something to do with the conspiracy, was to build a canal around the Falls of the Ohio on the Indiana side of the river.
[9] Floyd had also committed to Aaron Burr that he would raise a regiment of soldiers to support his cause of illegally invading Mexico.
[10][11] The regiment of 30 men and boats assembled on Silver Creek in Clark County and left from the Falls of the Ohio to sail downriver to Natchez, Louisiana.
They were unable to meet up with the rest of assembling regiments because President Thomas Jefferson, already aware of the plot, decided the men were guilty of treason and ordered them all arrested.
Some believe that Floyd was unaware of Burr's larger plot but much of the public at the time considered him a "conscientious traitor".
[12] Just days after his sentencing in the conspiracy with Burr, the Indiana Territorial Legislature elected him as Treasurer of the lower house.
After learning of those events, and President Thomas Jefferson's unhappiness with the outcome, the legislature decided to take action.
Thomas Posey revoked Floyd's military commission in the militia, probably at the request of President Jefferson.
Floyd served as secretary of the convention which issued a resolution to oppose the new laws passed by the pro-slavery legislature.
[citation needed] When hostilities broke out with the Indians in 1811, Floyd was reinstated in the militia to the rank of lieutenant.
After the 1809 Treaty of Fort Wayne, Floyd served with William Henry Harrison during Tecumseh's War and was present at the Battle of Tippecanoe.
[19] Floyd was also instrumental in conducting negotiations to prevent the Delaware Tribe from joining the Shawnee's war.
On November 22, 1816, during his term as a legislator, Floyd proposed the official acceptance of the design the state seal.
[3] His home was later bought by Governor William Hendricks and is now a part of the Corydon Capitol State Historic Site.
[31] With his political career seemingly at an end and his fortune gone, Floyd eventually accepted an appointment from Secretary of State John Quincy Adams to be a United States Commissioner and settle land disputes in newly acquired Florida Territory.