WASHINGTON, D.C. — Rep. Michele Bachmann said today she is reconsidering her commitment to speak at the National Tea Party Convention in Nashville because of  potential ethics concerns she said have been raised about members of Congress speaking at the event.

"We've been getting conflicting advice from different sources on if we can or cannot participate, and if the advice is conflicting, I think we need to err on the side of caution, but we'll make a final decision," she said. "We're reevaluating right now and we're trying to decide what would be the right thing to do."

Among the concerns Bachmann listed: That the Tea Party convention is a for-profit venture, and that the event organizer, Tennessee lawyer Judson Phillips, may also be running a 527 group. Bachmann said her office is working with the House Ethics Committee to see if she will be cleared to attend. Unlike former Alaska Gov. Sarah Palin, who reportedly will receive a $100,000 honorarium for speaking, Bachmann said she would not be paid regardless.

"I would be delighted to go, but it may not be possible," Bachmann said, adding that her wavering should not be considered a repudiation of the Tea Party movement as a whole, which she said she fully supports.

While the Tea Party movement has seen an explosion in participation over the last year, the coming convention has been questioned in recent weeks by Republicans who balked at Palin's speaking fee and a $549 ticket fee.

Bachmann joins Tennessee Republican Marsha Blackburn, who said she too is reconsidering going.