Frank Bruni: Senate Republicans are bathed in shame

The impeachment trial of President Donald Trump began Thursday when John Roberts, chief justice of the Supreme Court, directed all of the senators to stand and raise their right hands. Ever since, I can’t get two questions out of my head.The first: How in God’s name — and it was in God’s name — can the Republicans who have already decided to acquit Trump take a solemn oath to administer “impartial justice”? They’re partial to the core, unabashedly