"Liberal propaganda!"
"Of course the rest of the world is saying that! Everyone wants to see America fall because of how jealous they are of our country so they make up lies to destabilize us. And you're gullible enough to fall right into their trap."
I've heard these from my family and old friends for the last decade anytime something negative comes out about Trump.
EDIT: I can guarantee you that if Trump were to directly announce a partnership with Russia, none of his base would care: "I love Putin, he helped me win both elections, he even helped for the 2020 election, but crooked Joe stole that election ILLEGALLY as everyone knows. Well, everyone who's intelligent, anyway. *Audience laughs* Yeah, the Left wants you to believe Putin is our enemy, but he's been working to help make our country great again. And no one wants to give him credit because the Left has sold us this lie since the 1950s that Russia isn't trustworthy. Hello? I've worked personally with Russia. I know how trustworthy they really are. Who are you gonna believe, some blue-haired transgendered illegal immigrant who's never stepped foot into Russia, or are you gonna believe me? The guy who has personally sucked Putin's cock MULTIPLE times. To completion, even" *audience applauds*