Unidentified Arizona woman took aim at O'Rourke's stance on illegal immigration.
"I notice that you pander a lot to the illegal aliens and encouraging illegal immigration," she said. The crowd started to boo, and O'Rourke told them to "let her speak."
"We are a nation of laws, and I just think it's a slap in the face to every legal immigrant who has waited and paid and played by the rules to immigrate to this country, and who have respected our country, our land, our citizens, our laws," the woman continued, "and who have gone through the process."
She continued, "To just say 'everybody is welcome here, you all get free stuff and just come on over the border' is, again, a slap in the face to every legal immigrant like my mother who has come here legally."