"This is the first impeachment trial of a President," Schumer said, "that has no witnesses and no documents."
"Why? Because they're afraid of getting to the truth," said Sen. Chris Van Hollen (D-MD).
"There is no exoneration, no vindication, no real acquittal from a fake trial," Van Hollen added.
"No one in this country is above the law - no one - not even the President," said Sen. Gary Peters (D-MI).
Just as in the late stages of the impeachment trial of President Bill Clinton, talk of a resolution of censure emerged in this trial, pressed by Sen. Joe Manchin (D-WV), who argued President Trump's "behavior cannot go unchecked by the Senate."
"I do believe a bipartisan majority of this body would vote to censure President Trump," Manchin said on the Senate floor, after observing that there is nowhere near the two-thirds supermajority needed to convict and remove the President from office.
But there was no bipartisan appetite for Manchin's plan.
Final votes on the two impeachment charges against President Trump are scheduled for 4 pm on Wednesday; between now and then, Senators can be recognized on the Senate floor to debate the charges.