That is because in order to change the constitution, you need the approval of everyone. The president, the House of Representatives, the Senate, and the people. It is impossible to change the constitution unless everyone agrees, which is why it is complicated to do it.
I’d have to say courage. It took a lot for them to rise up and start their movements
Answer:
The expansion of railways meant manufacturers could ship goods cheaply.
The building of the railroads changed the environment of the West.
Explanation:
He succeeding in paying off the national debt for a while, which could have enticed other countries to trade with the U.S, that and he made money safer to store and withdraw out of banks.