Fox News politics editor Chris Stirewalt said in an appearance on Tuesday that it is futile for GOP senators to try to push 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 into having a more mainstream approach to NATO, stating at one point that Trump is likely to fly into this week's summit like a "seagull" and "defecate all over everything."

Stirewalt made the comments during an appearance on "Fox News @ Night" after host by Shannon Bream played a clip of Senate Foreign Affairs Committee Chairman Bob Corker Robert (Bob) Phillips CorkerHas Congress captured Russia policy? Tennessee primary battle turns nasty for Republicans Cheney clashes with Trump MORE (R-Tenn.) voicing concerns about the NATO summit and the president's upcoming meeting with Russian President Vladimir Putin.

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Among other things, Corker, who has sometimes criticized the president harshly on foreign policy, said that he was worried a bad NATO meeting could lead to the U.S. giving Russia some kind of "consolation."

Stirewalt responded by saying that Republican lawmakers should quit kidding themselves that they can prevent Trump from realigning "U.S. foreign policy to be more favorable towards Russia.”

The Fox editor predicted that Trump will blast NATO and that such criticism will lead European allies to doubt the United States despite actions the administration has taken, such as the imposition of sanctions on Moscow.

“And the Republicans who say, ‘Well, we have a broad foreign policy apparatus and we forced him to impose these sanctions, and we forced him to do these things.’ He’s going to fly into Brussels like a seagull," Stirewalt added. "He is going to defecate all over everything — squawk and fly away is what he’s going to do in Brussels.

"And the Europeans are going to continue to say to each other, ‘We don’t have a reliable partner in the U.S. government right now.’”

Stirewalt's comments came a day before Trump met with other world leaders at a NATO summit in Belgium — and immediately sounded a confrontational note.

Trump singled out Germany as a country that is "totally controlled" by Russia because of a pipeline deal that brings gas from Russia to Germany’s Baltic coast, and he ripped NATO members for not paying more for their defense.