How are the Senate leaders chosen? They are appointed by the president of the Senate. They are elected within each party. They are elected by the whole Senate. They are appointed by the president pro tempore.

B

They are elected within each party

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.