Who in the house has the power to lead the caucus and control the agenda?
the majority whip
the majority floor leader
the speaker of the house
the committee chair

I think the correct answer from the choices listed above is the third option. It is the Speaker of the House that has the power to lead the caucus and control the agenda. The Speaker of the House is the presiding officer of the United States House of Representatives. Hope this answers the question. 

The answer is a hope