The Senate is led by the speaker of the house
the minority leader
the lieutenant governor
the floor leader

the floor leader

Explanation:

The speaker of the house leads the House of Representatives. The Senate has Democratic and Republican floor leaders that are elected at the beginning of each Congress. Depending on which party is in power, one serves as majority leader and one serves as minority leader. Because the Republican Party is in power right now, the majority leader would be Republican and the minority leader would be Democrat. So, the majority leader or floor leader leads the Senate.

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a change of venue is the legal term for moving a trial to a new location. a change of venue request because venue is improper means that the removing defendant believes that the case may not be in that venue because it is improper under procedural rules.