The Horse Bill will be discussed on the Senate floor and then has to be voted unanimously.
In the Senate, the authority to call up a bill is reserved for the Majority Leader.
In setting the legislative agenda, the Majority Leader consults with the Minority Leader, with the committee chairmen appropriate to the matter, and any individual Senators who have notified him/her of their interest in the legislation at hand.
The Senate’s Majority Leader must be more inclusive and accommodating than the Speaker needs to be in the House, because he/she is restrained by tools available to him/her to call the bills up.
Senate procedure permits only two: the unanimous consent of all Senators, or a motion to proceed to the consideration of a bill. One single objection prevents unanimous consent from succeeding, so if this route is chosen extensive negotiations to meet every Senator’s concerns must precede it.
Once the Horse Bill passes, it is sent to the President for signing.