A key Herman Cain aide in Iowa says “a few” Cain supporters no longer back the businessman’s candidacy, but the “vast majority” of Cain backers are “sticking with” the candidate.

according to Steve Grubbs, Cain’s Iowa campaign chairman, nearly 900 precinct captains have pledged to talk-up Cain’s candidacy at the Caucuses.   

“We’ve lost a few, but considering all that’s occurred and the dramatic headlines of the last couple of days I look at where we are right now and have a sense of relief that the organization is still largely intact,” Grubbs said this evening, “and our supporters are largely still sticking with us.”

An Atlanta woman has alleged she had a 13-year affair with Cain. Cain sent an email to supporters saying the “woman’s story is completely false” but Cain has also talked about “reassessing” his campaign strategy amid dwindling donations and lingering questions about his foreign policy expertise. During an interview with Radio Iowa this evening, Grubbs said the Cain campaign is “charging ahead” in Iowa.

“Nothing has changed except the fact that we’re going to reassess where we’re at and I take that to mean that we’re reassessing where resources are being allocated,” Grubbs said. “We understand that, you know, with some of the recent controversies, some of our contributions may fall a bit so we have to squirrel away our resources for the end game which starts January 3 and runs through March.”

Cain’s Iowa campaign headquarters is across the street from rival Michele Bachmann’s. On Tuesday one of Bachmann’s Iowa backers Tweeted that “moving trucks” had pulled up to the Cain office, but it turns out the trucks were there to make a delivery.

“We do have 3000 yard signs there now,” Grubbs said. “If anyone would like one, we would be happy to provide them with one.”

Cain has not campaigned in Iowa since November 19.  Two of his rivals plan events in Iowa Wednesday. Michele Bachmann will speak at the University of Northern Iowa early Wednesday afternoon, then make stops in Waverly and Charles City. Newt Gingrich will attend a “Slice the Deficit” pizza party in Council Bluffs Wednesday evening.