I learned something about the "internal politics" of the U.S. Senate when reading about Ben "Pitchfork" Tillman, one of those small intricacies the primitives would never understand.
Sometime during the presidency of Theodore Roosevelt (1901-1909), Roosevelt wanted a certain law (something to do with the trusts, I think, but I don't remember) considered and passed by the Senate.
The Republicans in the Senate didn't want to have anything to do with it, and while one was willing to actually bring it to the Senate, no Republican wanted to touch it.
The Democrats in the Senate didn't want to have anything to do with it either.
However, there was the bill, and something had to be done with it.
Ben "Pitchfork" Tillman was the leader of the minority (i.e., Democrats) on the Senate committee that had to consider the bill.
The problem was solved by the Republican majority voting to have the hapless Senator from South Carolina be the sponsor of the bill, and to defend it--even though he was against the bill himself.
He did so, but it never got passed anyway.