In S2, E3, House of Cards, Francis Underwood attempts to pass a bill about delaying the retirement age with the Republicans (entitlement amendment); who initially agree to cooperate but later change their mind.
In response, Francis Underwood cuts deals with a few Republican Senators below the table and walks into the Senate and starts asking Sergeant at arms / Jury to call names and chase off the senators who are opposing him from the Senate. I believe this is called a quorum. During this name calling process, senators are walking in and out of the Senate.
Then the remaining opposing senators are arrested and put in a room. In a few moments, they are bound and carried back to the Senate.
I do not understand the political background of this scene and how exactly Francis Underwood manipulates this situation to his favour.