The powerful anti-tax group Club for Growth has provided over $700,000 in financial support for two of its endorsed candidates who are competing in runoffs today in South Carolina.In the 1st district, the club has funneled over $209,000 in contributions to state Rep. Tim Scott (R) since endorsing him on Feb. 17. That includes $62,000 in the two weeks since the June 8 primary. The clubs political action committee has also poured another $104,000 in independent expenditures into the district. About $69,000 of that has been spent on television advertising since the primary. The rest has gone toward funding direct mail to voters.In the 3rd district, club members have contributed nearly $190,000 to state Rep. Jeff Duncan (R) since the group endorsed him on March 23. Nearly $57,000 of that has come in the last two weeks. The Club for Growth PAC has spent roughly $98,000 on television ads since the primary, after buying about $110,000 in ads before the primary.The winners of both runoffs will be heavily favored to win their general election contests in November in the safely Republican districts.