Who will be Trump's Goldwater?

Back in 1973-74, most Republicans were staunchly defending President Nixon from impeachment or simply resignation for his Watergate crimes. Future president George H.W. Bush, then Chair of the Republican National Committee, earned enduring loyalty among Republicans from traversing the country defending Nixon to the GOP establishment. Then, in early August, 1974, Sen. Barry Goldwater, arguably the most respected Republican in Congress, publicly said this about Nixon:

"Nixon was the most dishonest individual I have ever met in my life. He lied to his wife, his family, his friends, his colleagues in the Congress, lifetime members of his own political party, the American people and the world. There are only so many lies you can take, and now there has been one too many. Nixon should get his ass out of the White House -- today!"

Goldwater, along with two Senate colleagues, held a private meeting with Nixing on August 6. The next day Nixon resigned.

When, oh when, will Republicans of Goldwater's stature step to mercifully do what only a GOP Congressional majority is capable of doing to end the plague of lying, bullying, colluding with Russia and debasing America's political culture in the 113 days of the Trump administration?