The pivotal Senate vote on the two articles of impeachment against President Trump got underway Wednesday afternoon on Capitol Hill, with an acquittal all but certain.

Each senator on the 100-member jury will rise from their desk for roll call, and state their verdicts, on each of the two counts, abuse of power and obstruction of Congress.

Utah Sen. Mitt Romney was the only one of the chamber’s 53 Republicans to come out in support of removal, meaning the 67-vote threshold in the Senate needed to convict Trump will not be reached.

A swift acquittal on both counts is considered an inevitability, bringing to a close a turbulent chapter that began nearly five months ago when the House launched a formal inquiry into his dealings in Ukraine.

Some Republicans senators have said in recent days that the president’s seeking an investigation by Ukraine into former Vice President Joe Biden was inappropriate but that it also fails to rise to the level of the “high crimes and misdemeanors” standard warranting conviction and removal from office.

Majority Leader Mitch McConnell has said Democrats are merely trying to overturn the results of the 2016 election with the partisan impeachment and remove Trump from the ballot in 2020, and have said American voters should have the final say.

No president has ever been removed by the Senate.

President Andrew Johnson was found not guilty in the Senate — by one vote — following his impeachment trial in 1868.

The Senate voted in 1999 to acquit President Bill Clinton of lying under oath about a sexual affair with a White House intern.

President Richard Nixon resigned in 1974 before he could be impeached in the House over the Watergate affair.

Wednesday’s vote will bring an end to the Senate trial that has lasted for 21 days.

The articles were first passed in the Democrat-controlled House of Representatives in a vote nearly entirely along party-lines held the week before Christmas.

Any lingering questions about whether the Senate would vote to remove the president from office ended Tuesday afternoon when Sen. Susan Collins (R-Maine), who has been a potential swing vote for Democrats throughout the process, announced she would vote to acquit.

“It was wrong for President Trump to mention former Vice President Biden on that phone call, and it was wrong for him to ask a foreign country to investigate a political rival,” said Collins, who voted last week with Democrats to call witnesses to appear at the trial.

“While I do not believe that the conviction of a president requires a criminal act, the high bar for removal from office is perhaps even higher when impeachment is for a difficult-to-define noncriminal act,” she said.

Sen. Joe Manchin (D-W.Va.) took to the Senate floor Monday to call for the body to censure Trump, but the proposal found zero support among Republicans.

Rep. Adam Schiff (D-Calif.), who led the House team that prosecuted the case against Trump in the Senate, warned that the president, if acquitted, will only become bolder.

“You can’t trust this president to do the right thing, not for one minute, not for one election, not for the sake of our country,” he said in his closing argument. “He will not change. And you know it.”

Trump, the third president to face impeachment in the Senate, was greeted by chants of “Four more years” by Republican lawmakers as he prepared to give the State of the Union speech in the House on Tuesday evening.

And despite the months-long impeachment proceedings, Trump’s job approval rating is the highest it has been since he entered the White House in 2017.

A Gallup poll released Tuesday found 49 percent of registered voters give Trump a thumbs-up.

With Post wires