What are some limits on the legislative branch?

1. The constitution - the legislative branch cannot enact laws that violate the constitution. this limit is kinda limited in that the legislative branch could vote to change the constitution, but it would be extremely difficult and would also need ratification by 2/3 of the states.

2. the president - congress can pass laws, but they are not official laws until the president signs them. the president can refuse to sign a law the legislative branch has passed or veto them. with a super majoiity the legislative branch can override a veto though.

3. the people - the people vote for who is in the legislative branch. if we dont like what they do we can vote in new guys.