Read the full story at KDVR-TV Denver.

On Monday, ProgressNow Colorado sent a camera and a cardboard cutout of President Obama--with no other provocations--into the line at Mitt Romney's rally in Denver.

FOX 31 reports on what happened:

On Tuesday morning, the group posted the four-minute video on YouTube, in which dozens of Republicans pass by cardboard Obama and, in a few cases, can’t help but hurl less-than-politically correct comments its way. You can watch the video below.

“Go back to Kenya!” one person says.

“Strangle him!” says another.

The video and more from FOX 31's report after the jump.

Asked what they want people who watch the tape to see, the group’s executive director, Joanne Schwartz, said this:

“It’s clear that not all, but many within Romney’s base of support dislike the President for irrational and often hateful reasons. Comments like ‘go back to Kenya,’ and asserting Obama is ‘black and used up’ reflect a much uglier prejudice than most Americans would identify with.

“Others continue to repeat discredited race-baiting falsehoods about the President’s religion and nationality,” Schwartz continued.

“Everyone we videotaped yesterday has a right to free expression, but others have the right to publicly reject intolerance. In a free society, we have an obligation to call this out.”

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