But he noted the 9-9-9 Fund "raised funds during the presidential to support the 9-9-9 plan. When Mr. Cain exited the campaign, the PAC had unspent funds.

It’s a testimony to the integrity of the people who raised the funds that the money is still going to a PAC that promotes the 9-9-9 plan," he said.

The committees became affiliated by “counsel’s suggestion,” Holm said, but he declined to explain further. He did not comment on how involved Cain would be in the PAC’s activities.

Cain dropped out of the presidential race on Dec. 3 after several women accused him of sexual harassment. But he made clear that he would continue to push his 9-9-9 economic plan, which calls for a 9 percent sales tax, a 9 percent income tax and a 9 percent corporate tax.

“The pundits would like for me shut up, drop out and go away,” he said at the time. “I am not going to be silenced and I’m not going away!”

Cain has endorsed Newt Gingrich for president.

Cain Connections PAC was registered Dec. 14 with the FEC, 11 days after Cain left the race.

— Peter Schroeder contributed to this report.