There was truth behind the hat.

New England Patriots quarterback Tom Brady endorsed Republican presidential candidate Donald Trump on Wednesday during a locker room interview with the media.

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With a “Make America Great Again” red hat that was sent to him by Trump sitting in his locker, Brady said: "That would be great. There'd be a putting green on the White House lawn. I know that," about his hope for the billionaire to win the 2016 race, when asked about the hat ahead of the second GOP debate that night, according to reports.

“It was a nice keepsake,” he added, speaking of the hat, which previously brought speculation that the football player supported Trump. “It could be a ... yeah, a nice piece of memorabilia he sent me.”

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Trump previously expressed his support of Brady on Twitter when a judge overturned Brady’s Deflategate suspension earlier this month.