The man's shouts were mostly inaudible.

"Obama ... three-thousand babies died ... abortion! abortion!" the man said. His shouts eventually changed to cries that "abortion is sin."

McCain's speech was on administration leaks related to Iran and made no mention of abortion rights.

The man was quickly removed from the gallery and Sen. Saxby ChamblissSaxby ChamblissFormer GOP senator: Let Dems engage on healthcare bill OPINION: Left-wing politics will be the demise of the Democratic Party GOP hopefuls crowd Georgia special race MORE (R-Ga.) began his floor speech.