COLUMBIA, S.C. — Proving he can raise money beyond his own run, South Carolina’s Jaime Harrison is launching a new political action committee that will raise funds for Democratic efforts following his Senate campaign that raised more than $130 million.The first spending phase of Harrison’s the Dirt Road PAC will start in Georgia, a state that went blue this year by voting for Democratic President-elect Joe Biden and where two U.S. Senate races could give Democrats control in both Capitol chambers.Harrison named his group the Dirt Road PAC after a story he told while on the campaign trail where…