Despite growing calls for him to resign, Republican State Senator Kent Sorenson signaled yesterday that he will fight a new ethics complaint based on alleged payments from Ron Paul’s presidential campaign. The Des Moines Register’s Jennifer Jacobs reported that Peter Waldron plans to file a second complaint with the Iowa Senate, claiming that Sorenson worked with Paul campaign officials “to solicit and conceal compensation” for himself and others. Waldron is a political consultant who worked for Michele Bachmann’s presidential campaign. Earlier this year, he filed complaints against Sorenson with the Federal Election Commission as well as with the Iowa Senate.

Documents and audio recordings published by The Iowa Republican blog indicate that intermediaries negotiated with Paul campaign officials on Sorenson’s behalf, and that Sorenson later received a big check from a Paul campaign manager. But Sorenson’s attorney Ted Sporer told the Des Moines Register that the charges are “gibberish.”

Sporer confirmed [Dimitri] Kesari, against Sorenson’s wishes, surreptitiously handed Sorenson’s wife a check drawn on a retail business’s bank account. But the check is still in Sorenson’s possession, he said.

“It has never been cashed,” Sporer said. “Obviously we can show it’s never been cashed. And an uncashed check is simply an autograph.”

Three weeks ago, Sporer told a Minneapolis Star-Tribune reporter, “There was no money that changed hands. There was no direct or indirect payment from the Ron Paul campaign.”

The Iowa Senate Ethics Committee won’t be able to punt this time, but it may take months to investigate the new charges. Meanwhile, I haven’t heard of anyone planning to challenge Sorenson in the GOP primary to represent Iowa Senate district 13. If I were a Republican in Warren or Madison County, I’d have started looking for a more viable candidate months ago.