Final answer:
After a bill is introduced and assigned to a committee, the most common thing that happens is that the committee holds hearings and gathers expert opinions on the bill. They also go through a process called markup, where they amend and vote on the bill. If the committee decides to advance the bill, it moves to the House or Senate for further consideration.
Step-by-step explanation:
After a bill is introduced and assigned to a committee, the most common thing that happens is that the committee holds hearings on the bill. During these hearings, the committee gathers information and expert opinions on the bill. They may also accept written statements from the public. After the hearings, the committee goes through a process called markup, where they amend and vote on the bill. If the committee decides to advance the bill, it is printed and sent to the House or Senate chamber for further consideration and voting.