Bristol Palin's New York Abstinence Campaign (SLIDESHOW)

Bristol Palin hit the campaign trail in New York City Wednesday. But this time she didn't do it for her mother's political ambitions. Eighteen-year old Bristol is an ambassador for teen abstinence, despite the recent birth of her son Tripp in December. Tripp's father, Levi, has continued a war of words with the Palins. This morning he went on CBS The Early Show to comment on Bristol's campaign. Levi called it "unrealistic".

Check out a slideshow of Bristol on her campaign in New York Wednesday: