(Zoom in by the way!) good luck
Here are four different reasons for the development of our two-party system.
1. The force of tradition.
2. The American ideological consensus.
3. The historical basis.
4. The electoral system.
I hope this helps.
....Im trying nnot to laugh... whats the question tho?
The official President of the Senate is the Vice-President. (https://www.senate.gov/reference/Index/Vice_President.htm) so that might lead to some conflict between the branches of government. Imagine if the President could order his deputy to decide who was on which committee or who could speak during a proceeding. The executive branch could shape the Senate by putting members of their party in positions of power even if they did not have a majority.