WASHINGTON – A lawyer in Tennessee who is mysteriously linked to millions of dollars in campaign contributions steered to congressional candidates doubled his investments in the weeks before Election Day and quietly funneled $6.8 million more to a prominent tea party group, according to new financial statements filed with the government.

William Rose of Knoxville previously told The Associated Press that his business was a “family secret” and he was not obligated to disclose the origin of what now amounts to more than $12 million that he routed through two companies he recently created. Rose did not immediately return phone calls from the AP on Friday. He previously complained that phone calls and emails from reporters were irritating.

The money went to the tea party’s most prominent “super” political committee, FreedomWorks for America, which spent it on high-profile congressional races. The $12 million accounted for most of the $20 million the group raised this year.