Everything else is politically irrelevant.
I have maintained for some time that the 17th Amendment allowed two sections of the legislature to be guided by greed and government growth. The State-appointed Senators were the guardians of the 10th Amendment. Once removed, the 10th lost its function, losing to the will of the popular senators who were willing to fund their re-election with benefits from the treasury.
What is conservative? Conservative is a belief in the other C-word: the Constitution. Madison stayed to the letter of the Constitution, something we do not see from any politician at present.