He was so popular because he led the US through the Great Depression and World War II
(Not exactly sure about the answer) The Congress would have to bring treason against the president, because of the fact that the president went against the countries rules by taking a bribe that could've been related to helping another country. The responsibilities of the Reps. and the senate would have to be, to give the president the punishment of impeachment.
It's A. Brunelleschi. Hope this helps :)
I am confused about your question, because neither Truman or Eisenhower were around when Vietnam was happening...
If you clarify, I might be able to answer your question
C that was one of the reasons why they needed more representativ government
