Hasselbeck found herself outnumbered after she voiced her opposition to the controversial contraceptive, which is said to be capable of preventing pregnancy if taken up to 72 hours after unprotected sex.
"These kinds of issues arouse the strongest emotions," said Walters, introducing the subject.
"They do!" Hasselbeck blurted out. "My heart is, like, almost out of my chest right now!"
"Why?" asked co-host Joy Behar, 62.
Hasselbeck explained that she feels the pill disrupts pregnancies after conception, the point where she believes life begins. "It's the same thing as birthing a baby and leaving it out in the street!" she declared.
Guest host Lisa Loeb, 38, then called Hasselbeck's views "extreme." And Behar questioned her sharply. "So you would say that a 12-year-old girl . . . who's been raped by her father or her uncle should proceed to term because that's 'a life'?" Behar shrieked.
Walters then tried to lower the volume. "Elisabeth, calm down, dear," Walters scolded.
"I can't! This makes me so upset, Barbara!" Hasselbeck said.
As the segment ended, Hasselbeck was seen tearing a sheet of paper in half in frustration.
And when the show returned from commercials, it was obvious Hasselbeck had been crying.