Morgan and the congresswoman were in the midst of discussing homosexuality on Piers Morgan Tonight, when Bachmann insisted that she is not a "judge" of anyone else's behaviour.
The CNN host appeared surprised by her comments and accused Bachmann of being "the most judgmental lady in American politics", provoking a fiery response from Bachmann.
"Well that's rude," she declared. "That's absolutely rude. I'm not a judgmental person."
Morgan then attempted to tamper down the debate by insisting he wasn't "trying to be rude" and suggested that Bachmann had been "outspoken" on social issues in the past.
"I believe in traditional values," Bachmann replied. "I believe in marriage between a man and a woman… but I don't think that's bigoted."
Morgan then read a 2004 quote by Bachmann where she appeared to liken homosexuality to "personal enslavement", but the Congresswoman once again rejected the claim that she was making any judgments about others.
"I'm not here as anyone's judge… quite honestly," she insisted. "I'm here as a member of Congress and a former candidate who ran for the presidency of the United States and I believe very firmly that we have got to get the nation back on the right track."
Bachmann had been on Piers Morgan Tonight to comment on the US presidential race as well as Kirk Cameron's controversial comments on CNN where the actor said that homosexuality is "destructive" to society.
> Howard Stern condemned by Republican politician Michele Bachmann