But in a series of discreet forays, the stoic 78-year-old had tried to nudge senators toward a different outcome.
He made clear to associates in the aftermath of the January 6 attack that he viewed Trump's actions around the riot as impeachable and saw a Senate trial as an opportunity to purge him from the party, prompting an article in The New York Times that his office notably did not challenge. In a letter to colleagues, McConnell signalled he was open to conviction, a stark departure from a year before when he had declared he was not an "impartial juror" in Trump's first impeachment trial and guided him to acquittal.
And then last week, in a speech on the Senate floor, McConnell flatly said the president had "provoked" the mob that sent the vice president and lawmakers fleeing as it violently stormed the Capitol, trying to stop Congress from formalising his election loss.
They were striking moves for McConnell, who for four years consistently supported and enabled Trump, including backing his refusal to concede the election for more than a month after Joe Biden was declared the winner. Trump spent that period spreading the false claims of voter fraud that fueled the Jan. 6 rampage.
But in the wake of the mob assault and a pair of Senate losses in Georgia, McConnell had come to view the former president as a dangerous political liability and saw an opening to marginalise Trump.
He may have brought exceptionally energetic new voters into the Republican fold, McConnell and his advisers believed, but Trump's excesses and personality had driven women and suburban voters away, and with them control of the House, the Senate and the White House in just a few short years. And in after the Capitol riot, his actions had also put at risk the backing of donors and corporate groups that power the party's campaigns.
Still, the always-restrained Kentuckian never mounted a campaign to persuade other Republicans to join him, knowing how difficult it would be for his party to break from someone who polls indicate that half of its voters believe should remain their leader.
If all senators were voting, it would take 17 Republicans joining every Democrat to convict Trump, something that seemed all but unthinkable after Tuesday's vote.
In the week since Trump skipped Biden's inauguration and decamped to his private club in Florida, it had become increasingly clear that his departure from the Oval Office had done little, if anything, to loosen his grip on rank-and-file Republicans in Congress. While few have defended his conduct, many fewer have dared to back the impeachment push. The 10 House Republicans who did join Democrats in voting to impeach him faced fierce backlash, and in the Senate, constituents were flooding offices with phone calls indicating they expected their senators to stand behind Trump.
"Let's face it: Many of the people there — they want to be reelected, most of them," said Bob Corker, a former Republican senator from Tennessee who retired in 2018 after clashing with Trump. "For those people, whose service in the Senate is their entire life, I'm sure just what they are hearing back home has an effect on them."
When Senator Rand Paul, R-Ky., raised an objection to Trump's trial, arguing that trying an former president would be unconstitutional, 45 of the 50 Republicans in the Senate — including McConnell — supported his challenge.
By Wednesday, the Republican Party stated an official position against holding Trump's impeachment trial.
"Not only is this impeachment trial a distraction from the important issues Americans want Congress focused on, it is unconstitutional, and I join the vast majority of Senate Republicans in opposing it," said Ronna McDaniel, the Republican National Committee chairwoman.
Far from elucidating his position, McConnell has adopted a sphinxlike silence in public. As late as Tuesday morning, according to Republicans briefed on the conversations, his own aides were uncertain how he planned to vote on Paul's motion. He has declined to explain his vote, telling reporters Wednesday that as a juror in the coming proceeding, he planned to keep an open mind.
"Well, the trial hasn't started yet," he said. "And I intend to participate in that and listen to the evidence."
His advisers declined to speculate on his thinking.
McConnell remains eager to move beyond Trump. While his House counterpart, Representative Kevin McCarthy, was set to meet Trump Thursday in efforts to repair his relationship with the former president, the Senate leader gladly told reporters he had not spoken to Trump since December 15, after McConnell congratulated Biden as the president-elect. He has told allies he hopes never to talk to Trump again.
Yet his public silence has left even some of the most loyal members of his conference flummoxed.
Senator Kevin Cramer of North Dakota, who said last week that McConnell had told him to vote his conscience on matters of impeachment, ticked through a series of possible explanations for the leader's vote Wednesday.
"Maybe this is one of those votes that you can be a reflection of your conference, and clearly he does that a lot," he said of McConnell. "Our conference was pretty overwhelming in its support."
The vote clearly bewildered some Democrats, some of whom questioned whether it was even worth the effort — or the costs to Biden — to spend time on an impeachment trial destined once again for acquittal. Senators Tim Kaine, D-Va., and Susan Collins, R-Maine, floated a bipartisan censure of Trump in lieu of a trial, setting off a flurry of debate over the topic.
"To do a trial knowing you'll get 55 votes at the max seems to me to be not the right prioritisation of our time," Kaine lamented.
But Democratic leaders were adamant they would move forward on February 9 as planned with oral arguments. And even Republicans theoretically in favour of a reprimand like censure conceded it was most likely unworkable, at least for now. Collins raised it with McConnell directly anyway, people familiar with the exchange said.
"No one will be able to avert their gaze from what Mr. Trump said and did, and the consequences of his actions," said Sen. Chuck Schumer of New York, the Democratic leader. "We will pass judgment, as our solemn duty under the Constitution demands. And in turn, we will all be judged on how we respond."
Written by: Nicholas Fandos and Jonathan Martin
Photographs by: Oliver Contreras
© 2021 THE NEW YORK TIMES