Number 15 in our countdown is a tie between several related videos. We like to call it "debate hate."

The video at the top is from the September 22, 2011 debate, where a gay soldier asked Rick Santorum whether he would roll back the repeal of DADT and the progress gays have made in the military under President Obama. Before Santorum could answer, some in the audience booed the soldier loudly. No candidate spoke up.

But that isn't the first time debate hate has reared its ugly head. On September 7th, the audience cheered Rick Perry's record of executing a record number of prisoners in Texas, including at least one who was innocent.

I was there. It was sickening and hateful.

And finally, the last example of debate hate comes to us via the first CNN Tea Party debate, where the audience cheered the idea of a sick person being left to die with no insurance or access to health care.

There you have it. Number 15, debate hate in three movements.