The role of the president pro temporary of the senate is?

The Constitution provides for a president pro tempore to preside over the Senate in the absence of the vice president. ... The president pro tempore designates other senators to preside in his absence, generally new members of the majority party.

abraham lincoln, according to anyone who was connected with agriculture, represented the worst of northern politicians. shortly after lincoln was elected, south carolina seceded from the union. they along with other southern states, retained their anger. in a way, it was their own fault: the democrats were split in the south. some wanted slavery to be extended in other states that were about to join the union and some didn't want it badly enough. lincoln had a solid backing from his party: the republicans were united in not wanting slavery to be expanded.