How are the senate leaders chosen?

The Senate Leaders are chosen by election in the beggining of each Congress by the members of their party. There is the majority leader and the minority leader and this decision depends on which party is in power at the time. The leaders' main duty is to speak their party's position on issues.

to oppose fdr’s new deal

explanation:

the american liberty league. the american liberty league was a nonpartisan organization formed in 1934 in opposition to the new deal. the organization's stated goal was “to defend the constitution and defend the rights and liberties guaranteed by that constitution.”