The Republican race for lieutenant governor took an expansive twist Wednesday when Mike Campbell, son of former governor Carroll Campbell, filed to run.

Former Attorney General Henry McMaster also intends to enter the race, his consultant said.

Campbell, 45, lost a 2006 primary runoff for the same office - his first run for political office - by 2.5 percentage points to then-Lt. Gov. Andre Bauer.

His father died of a heart attack in 2005 at age 65 after a four-year battle with Alzheimer's disease.

McMaster's political consultant said he misses public service and is likely to file for office in the next few days. "I think it's likely," said consultant Richard Quinn.

McMaster previously ran for the office in 1990, losing to Democrat Nick Theodore.

Republican Pat McKinney, a retired Charleston developer, already is in the race. Democrat state Rep. Bakari Sellers also is running.