The American West was indeed a land of great opportunity from 1865 to 1900 in the sense that there was an abundance of land and resources available to all those willing to go west.
The branches work against eachother when it comes to laws. The legislative branch makes laws, but the President can veto those laws with a Presidential Veto. The legislative branch makes laws, but the judicial branch can declare those laws unconstitutional.
Does it give you options to choose from?
You didn't give any answer choices..
