Reality television star and former South Carolina state Treasurer Thomas Ravenel (R) is gearing up for a run as an independent against Sen. Lindsey GrahamLindsey Olin GrahamDHS chief takes heat over Trump furor Overnight Defense: GOP chair blames Dems for defense budget holdup | FDA, Pentagon to speed approval of battlefield drugs | Mattis calls North Korea situation 'sobering' Bipartisan group to introduce DACA bill in House MORE (R-S.C.), he tells The State.

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Ravenel, who left office after being busted for cocaine possession in 2007, has become better known in recent years as a star on Bravo's reality show "Southern Charm."

Graham recently won his primary in a dominating fashion and is unlikely to face much of a challenge this fall, though some Graham allies are concerned that the libertarian-leaning Ravenel could siphon some of the vote from him and force Graham to work a bit harder for reelection.

The wealthy Ravenel, the son of a former congressman, has the ability to self-fund his campaign. He says he's gathering the 10,000 signatures necessary to make the ballot.