WASHINGTON (AP) — Sen. Mark Kirk became the first Republican senator to meet with Supreme Court nominee Merrick Garland, complimenting President Barack Obama’s pick Tuesday as “one of the most eminent jurists in the country” and criticizing GOP leaders’ refusal to hold confirmation hearings or a vote on him.

Kirk, who represents Democratic-leaning Illinois, is perhaps the most endangered Senate Republican facing re-election in November. And when it comes to the battle over Obama’s pick to fill the court vacancy, Kirk has been an outlier.

He’s one of just three Senate Republicans to say the Senate Judiciary Committee should hold hearings on Garland. And he’s one of two GOP senators — along with Susan Collins, R-Maine — to say the full chamber should vote on the nominee.

“I think when you just say I’m not going to meet with him and all, that’s too closed-minded,” Kirk told reporters as he met with Garland.

Republicans, led by Senate Majority Leader Mitch McConnell, R-Ky., insist that Obama’s successor should fill the Supreme Court vacancy after American voters have a say in November. The death last month of conservative Justice Antonin Scalia created the court opening, and Obama is pressing to make his third appointment to the high court.

“By leading by example, I’m showing what a rational, responsible guy would do that really wants the constitutional process to go forward,” Kirk said.

The senator called Garland “one of the most eminent jurists in the country.”

Democrats have been insisting that the Senate go through the regular confirmation process for Garland, the chief judge of the U.S. Court of Appeals for the District of Columbia Circuit. With most public opinion polls showing majorities favoring action on Garland, Democrats’ goal is to force GOP senators to buckle under pressure or make some of them facing re-election this fall pay the price on Election Day.

At least 13 Senate Republicans have said they’d be willing to meet with the federal judge though many said they would tell him that he won’t get a vote.

Earlier this month, Kirk said on a Chicago radio program that the Senate should “man up and cast a vote.”

Garland has met with seven Democratic senators.

(TM and © Copyright 2016 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)