The territorial expansion of the US and the question of whether or not slavery would be allowed in the new territories was perhaps the single greatest factor leading up to the war, since before expansion, slavery was mostly confined to the South.
A- this is not impeachment, wrong B- the house can impeach the president, which means that it can press formal charges, but not try- false C- this is true! D- this is not impeachment
You cannot. These states are high in population which has a major impact on the presidential votes. If one does not win over said states, they will mostly lose the election.