Sen. Chuck Grassley Charles (Chuck) Ernest GrassleyThe Hill's 12:30 Report: Ginsburg lies in repose Top GOP senators say Hunter Biden's work 'cast a shadow' over Obama Ukraine policy Read: Senate GOP's controversial Biden report MORE (R-Iowa) defended President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE on Wednesday after the president traded criticisms with Supreme Court Chief Justice John Roberts.

In a tweet, the Senate Judiciary Committee chairman said he did not recall Roberts "attacking" former President Obama when he criticized a Supreme Court ruling in his 2010 State of the Union address.

"Chief Justice Roberts rebuked Trump for a comment he made [about] judge’s decision on asylum," Grassley wrote on Twitter. "I don’t recall the Chief attacking Obama when that Prez rebuked Alito during a State of the Union."

Chief Justice Roberts rebuked Trump for a comment he made abt judge’s decision on asylum I don’t recall the Chief attacking Obama when that Prez rebuked Alito during a State of the Union — ChuckGrassley (@ChuckGrassley) November 21, 2018

Grassley's comments came after Roberts rebuked Trump earlier Wednesday for calling a federal judge who ruled against his administration's asylum policy an "Obama judge."

Roberts said in a statement that the U.S. doesn't have "Obama judges or Trump judges, Bush judges or Clinton judges.”

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"What we have is an extraordinary group of dedicated judges doing their level best to do equal right to those appearing before them,” he said in a rare statement. "That independent judiciary is something we should all be thankful for."

Trump fired back at Roberts later Wednesday, writing in a tweet that the courts "do indeed have 'Obama judges.'"

"Sorry Chief Justice John Roberts, but you do indeed have 'Obama judges,' and they have a much different point of view than the people who are charged with the safety of our country," Trump wrote.

Trump took aim at U.S. District Judge Jon Tigar on Tuesday for his ruling that prevented the Trump administration from blocking asylum claims from immigrants who do not enter the U.S. at a legal port of entry.

The president dismissed Tigar, calling him "an Obama judge." The judge was nominated to the federal bench by the former president in 2012.

In his 2010 State of the Union address, Obama criticized the Supreme Court's ruling on campaign advertising.

"With all due deference to separation of powers, last week the Supreme Court reversed a century of law that I believe will open the floodgates for special interests — including foreign corporations — to spend without limit in our elections," Obama said.

"I don’t think American elections should be bankrolled by America’s most powerful interests, or worse, by foreign entities. They should be decided by the American people, and I’d urge Democrats and Republicans to pass a bill that helps correct some of these problems," he said.

Supreme Court Justice Samuel Alito, who ruled in the majority, shook his head during Obama's remarks and appeared to be mouthing "not true."