Congress at Work:
What we are capable of:
Our powers are stated, or implied in the Constitution Article I Section 8. One of our main purpose is to create bills, that can become laws, if passed by the president or challenge the presidents veto and get a 2/3rds vote to override the veto. Additionally, we have power over the military, can declare war, impeachments, and deal with foreign commerce.
Our limitations to our power:
To keep our country's government stable, their are some restrictions that keep us from taking more and more power. We are not to make an unconstitutional law, and unless there is a 2/3rds vote against a veto of a bill, the bill will won't proceed to become a law.