Radio host trumps Donald by trademarking ‘Make America Great Again’ -- and sells it back for $100K

A radio host who snuck in and copyrighted Donald Trump's campaign slogan has agreed to transfer ownership of the phrase to the Republican frontrunner.

Radio host Bobby Estell, better known as Bobby Bones, trademarked the phrase, "Make America Great Again" -- which Trump displays on his baseball caps -- and offered to hand it over in exchange for a $100,000 donation to the St. Jude Children's Research Hospital.

Trump apparently agreed, because Estell posted a tweet Thursday afternoon thanking the real estate tycoon and reality TV star for his donation.

The check is described as payment for "transfer of trademark," but the amount is whited out at Trump's request.

"Thanks Donald Trump," Estell tweeted. "This check goes to St Jude. Have your slogan back."

Trump sells baseball caps bearing the slogan, along with other campaign merchandise, at his online store.

"We simply reimbursed him the money he had paid to try and register the trademark and allowed him to donate it to St. Jude's Hospital for which Mr. Trump's son Eric has helped raise millions of dollars toward cancer research," said Hope Hicks, a spokeswoman for Trump.

Estell had also requested a one-on-one interview with Trump on his syndicated radio program, but it's not clear whether the candidate agreed.