Washington (CNN) Rep. Matt Gaetz pushed his fellow Republicans to buck President Donald Trump and vote in support of the Iran war powers resolution, aimed at curbing the President's power to take military action, according to The Washington Post.

The Post reported that Gaetz's office had sent an email to all Republican offices Thursday, urging them to vote in favor of the resolution -- which the President and his team were lobbying his party to vote against. That attempt to convince other Republicans, along with his own vote, made Gaetz the subject of Trump's ire, the Post and CNN reported.

"We WILL be voting in favor of H. Con. Res. 83, and hope you will do the same!" Gaetz's legislative director wrote in an email obtained by the Post.

Gaetz has been a strong Trump supporter and a fierce defender of the President, including in the impeachment inquiry.

A source familiar with the matter told CNN on Friday that Trump told associates he wasn't very happy with Gaetz's vote, but it's not expected to have a lasting impact on their relationship. Some House Republicans did try to talk Gaetz out of voting for the resolution but he was committed to supporting it, the source said.

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