How has the role of Congress in our constitutional system changed over time? Describe at least TWO eras in American history in which the powers of Congress were expanded or limited.

Congress has changed over time because they have passed an additional 23 amendments. and the two powers are passing bills of attainder

I think that the answer(s) to your question would be either/or Promote patriotism,  justify the war,  raise money,  procure resources, and  promote accepted standards of behavior.

You're welcome!! I hope that this really helps. Have a great day, chao. :)