1. Support a federal amendment to eliminate gay marriage
2. Appoint anti-gay judges
3. Defend DOMA
4. Create a commission to investigate the harassment of anti-gay Christians
5. Abolish gay marriage in DC
The pledge is so hateful the Log Cabin Republicans denouced it right away:

Michelle Bachman's signed pledge:NOM Hate Pledge
NOM's Chairwomen Maggie Gallagher On GOP Anti-Gay Marriage Pledge:
Here NOM's President Brian Brown tries to justify the pledge with his ridiculous ramblings on gay adoption and the Chatholic Church.....somehow he ties that to marriage....yeah, exactly...WTF.