Calhoun had already effectively left the Adams coalition in 1826, as can be seen from his alliance with Van Buren over the Panama conference. Calhoun had started his career in Washington as a warhawk( a young nationalistic pro-war with Britain faction in Congress) with Henry Clay. Post-war he had continued his nationalistic support of the national bank, the American army as secretary of war, and being a prominent figure in the ill-fated Bonus bill of 1817. Lacking support aside from Pennsylvania and South Carolina for a presidential run in 1824, Calhoun opted to seek the Vice-presidency really regardless of who became president. His turn into the state's rights movement is complicated and long but essentially the growing radicalism of South Carolina contributed to him altering his own political stances. Calhoun's alliance with the Jacksonians wouldn't last long, his rupture with Jackson is now famous and once it was clear that Jackson would run for reelection in 1832 and all hope for their reconciliation had passed, Calhoun would resign the vice presidency and take up his senate seat.