The Dred Scott decision said that Congress could not prohibit slavery in territories, so this was declared unconstitutional.
Senator Edward Everett petitioned against this measure, which was rejected by the House and led to a Senate deadlock over John W. Taylor's amendment. When the question of freed blacks came up, the "second" one of these was engineered, and the Kansas-Nebraska Act ended Jesse B. Thomas's thirty-six thirty restriction. The Dred Scott decision said that Congress could not prohibit slavery in territories, so this was declared unconstitutional. It specifically dealt with Maine's admission as a free state, and it was helped along by Henry Clay. Name this 1820 agreement that admitted the namesake state to the Union as a slave state.
Senator Edward Everett petitioned against this measure, which was rejected by the House and led to a Senate deadlock over John W. Taylor's amendment.
The {Missouri} Compromise [or Compromise of 1820 until “{1820}” is read]