It was an act because they have not kept faith with the principles that McCain held dear — and that he himself organized his memorial service to celebrate, as a clear rebuke to Trump and Trumpism. McConnell, Ryan, Graham and the others have instead done the very opposite of keeping faith. They have made possible Trump’s hateful, petty, law-defying politics.

Despite running a branch of government that the Constitution makes equal to the presidency, they have meekly assented to Trump. Entrusted with power, they have chosen complicity.

They have refused to defend America’s national security in the face of Russian attacks. They have refused to defend the rule of law against Trump’s attacks. They have refused to defend the F.B.I., the Justice Department and the First Amendment. They have refused to defend the basic civil rights that Trump seeks to deny to dark-skinned American citizens, including the right to vote and the right to hold a passport.

When George W. Bush said the following words in his eulogy for McCain, what did the congressional Republicans in attendance think that Bush possibly could have meant:

“He was honorable, always recognizing that his opponents were still patriots and human beings. He loved freedom, with the passion of a man who knew its absence. He respected the dignity inherent in every life, a dignity that does not stop at borders and cannot be erased by dictators. Perhaps above all, John detested the abuse of power. He could not abide bigots and swaggering despots.”

When Barack Obama’s eulogy was organized around a recitation of McCain’s principles, what contrast could Obama have possibly been drawing:

“John cared about the institutions of self-government — our Constitution, our Bill of Rights, rule of law and separation of powers. … He understood that if we get in the habit of bending the truth to suit political expediency or party orthodoxy, our democracy will not work. … John understood, as J.F.K. understood, as Ronald Reagan understood, that part of what makes our country great is that our membership is based not on our bloodline; not on what we look like, what our last names are.”