Former President Donald Trump is running radio ads in Detroit starring a familiar voice, reported The Detroit News: Kwame Kilpatrick, the city's one-time mayor.

"This election is about the survival of our nation," said Kilpatrick in the ad. "It's about the survival of our children. It's about the survival of our economy. And when people are set against us in war, it matters that you send a firefighter into the room. I want Trump in the room."

Kilpatrick's endorsement of the former president comes after Trump used his final day in office to commute Kilpatrick's criminal sentence.

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The former mayor was convicted on 24 felony counts in 2013 involving racketeering, mail fraud, and wire fraud, stemming from a far-reaching bribery scheme in the awarding of city contracts for utilities. It wasn't even Kilpatrick's first criminal conviction; he had been convicted of perjury, misconduct in office, and obstruction of justice in 2008, which triggered his resignation from office.

Kilpatrick had been sentenced to 28 years in federal prison, which he had been serving at the time Trump issued the commutation.

Trump himself, ironically, now faces sentencing after being convicted on 34 counts of felony falsification of business records in New York, as part of a scheme to buy the silence of adult film star Stormy Daniels and interfere with the 2016 presidential election.

Sentencing has been pushed back to after the election, following a series of legal maneuvers and delay tactics from Trump.