Tom Ervin, a petition candidate for governor who calls himself an independent Republican, added a senior adviser who worked for California Gov. Arnold Schwarzenegger and a spokesman who worked for the S.C. Republican Party.

Senior adviser Matt David is a partner at Outland Creative Works in Los Angeles. He was Gov. Schwarzenegger's deputy chief of staff and communications director. He also worked in the last two GOP presidential primaries -- deputy communications director for Sen. John McCain in 2008 and campaign manager for Gov. Jon Huntsman in 2012.

Campaign spokesman Christian Hertenstein was a communications director for the S.C. Republican Party before working for Old Florida National Bank.

Ervin, a Greenville attorney and radio-station owner who was a state lawmaker and judge, has loaned his campaign more than $1 million in his bid to unseat Republican incumbent Nikki Haley of Lexington.

He also faces Democrat Vincent Sheheen, Libertarian Steve French and United Citizens candidate Morgan Bruce Reeves.