At Nashville he was received with open arms by Jackson and Jackson's friends.

This was not much to Jackson's credit, for by this time he should have known Burr's character; but the temptation of an attack on the Spaniards proved irresistible.

As Major General, he called out the militia of West Tennessee, and began to make ready in good earnest to invade Florida or Mexico.

At public dinners he and his friends and Burr made speeches in which they threatened immediate war against Spain, with which country the United States was at peace; but they did not threaten any attack on the Union, and indeed Jackson exacted from Burr a guarantee of his loyalty to the Union.
His Experience in Kentucky.
From Nashville the restless conspirator returned to Kentucky to see if he could persuade the most powerful of the Western States to take some decided step in his favor.

Senator John Adair, former companion-in-arms of Wilkinson in the wars against the Northwestern Indians, enlisted in support of Burr with heart and soul.