Senator Elizabeth Warren is always fun to see in action, especially when she's 100 percent right.

Watch her nail the anti-vax crowd and Rand Paul in one single swipe here. Transcript via Raw Story:

“Is there any scientific evidence that vaccines cause autism?” she asked

“No,” Schuchat replied.

“Is there any scientific evidence that vaccines cause profound mental disorders?” Warren asked.

“No, but some of the diseases we vaccinate against can,” Schuchat said.

The language of the question was taken directly from Paul. Speaking to CNBC last week, the Kentucky senator said he “heard of many tragic cases of walking, talking normal children who wound up with profound mental disorders after vaccines.”

The statistics she cites at the very beginning should frighten us all, particularly in light of the fact that up in the hipster Bay Area, one infected person with measles may have passed the disease to thousands of commuters.

Just vaccinate the kids, parents.