It is part of the the legislative branch and it makes our laws.
Definitely Senate.
The senate has the power to or reject important appointments made by the president
Perhaps the confirmation of Supreme Court justices is most important. Of course, the Senate must pass on every law, and this is very important. Ratification of treaties can be very important and confirmation of cabinet officers can important at times.
He formed a cabinet approved by the Senate.
Running for state senate is not as important as running for governor, because the governor is head of the state however running for the federal senate is a more important position than being governor.
senate chambers
Swearing in of new members.
He was a roman orator and a philosopher, he tried to limit the power of Rome's generals and give control of the government back to senate.
The balance of free and slave states in the senate was such an important issue because if the either had an advantage it would only help to trigger a war that was yet to come.
The city or state has a set of rules to fallow and the senate created them, if you don't have a set of rules then the whole place turns to chaos.
Ancient Rome had a republic. They had a Senate, A Consul, and Representatives they also had a monarch and an empire that had an emperor that was given advice by a senate with no important power
The VP allowed to cast the deciding vote if a tie occurs in the voting in some measure before the Senate.