Newt Gingrich
Former House Speaker Newt Gingrich won a straw poll hosted by the Tea Party Patriots. Reuters

For former House Speaker Newt Gingrich, if it isn't one thing, it's certainly another.

For one thing, his top staff stepped down in mass resignations earlier this month. And for another, the Republican presidential hopeful's campaign finance team decided to follow suit, a spokesman for Gingrich confirmed to the Associated Press.

Fundraising director Jody Thomas and fundraising consultant Mary Heitman have stepped down amid chatter from people familiar with the Gingrich campaign, who, speaking on condition of anonymity, said that Gingrich's campaign fundraising has been weak since he launched his bid and that he has racked up large travel bills.

Gingrich has said he is determined to stay in the race.

Appearing Tuesday morning on the Laura Ingraham radio program, Gingrich laid out plans for a stepped-up campaign effort in Iowa and said he will soon deliver a speech about inefficiency in the Environmental Protection Agency.