Protesters managed to disrupt John McCain’s acceptance speech, causing McCain to state, "Ignore the ground noise and static."  At one point a woman from the group Code Pink in the audience began taking her clothes off, revealing a pink camisole with slogans written on it.  As security drug her out, the audience chanted, "USA! USA!".  Another man dressed in black positioned in the rafters of Xcel Energy Center, held a sign showing "McCain Votes Against Vets". 

The previous day, two other code pink women managed to get in and attempted to disrupt Sarah Palin’s speech on Wednesday.

When asked how they did it, they said they "dressed Republican" and asked around for extra tickets outside the venue. Aparently that worked.  Because the women had valid credentials, they were not arrested.