Final answer:
Committees are important for several reasons. They support campaigns, have the power to stop bills from moving forward, and can change up bills in the legislative process.
Step-by-step explanation:
Committees are important for several reasons in the legislative process. First, committees help support campaigns by allowing legislators to specialize in certain policy areas and gain expertise. Second, committees have the power to stop a bill from moving forward by conducting hearings, discussing amendments, and deciding whether to send the bill to the full chamber. Third, committees can change up bills by making amendments and providing the majority and minority opinions in the committee report. Overall, committees play a crucial role in the legislative process, providing expertise, oversight, and decision-making power.