Des Moinse, Iowa ? Vowing to press ahead through the Iowa caucuses, Republican Michele Bachmann dismissed the notion Thursday that her presidential campaign was in disarray — even as she lost another staff member.

Her comments came a day after a key supporter fled her campaign and she had to fend off other calls to leave the race for the GOP nomination. On Thursday, Wes Enos said he was leaving his job as Bachmann’s political director.

Despite all that, the Minnesota congresswoman called her campaign organization “strong” and said her headquarters had received 150 calls of support after her Iowa campaign chairman, state Sen. Kent Sorenson, resigned and switched his allegiance to rival Ron Paul on Wednesday.