GRAND PRAIRIE, Tex.

On Thursday, I came here outside Dallas for a Tea Party rally.

At first I thought, “Wow! This is much more diverse than the rallies I’ve seen on television.”

Then I realized that I was looking at stadium workers. I should have figured as much when I approached the gate. The greeter had asked, “Are you working tonight?”

I sat in the front row. But when the emcee asked, “Do we have any infiltrators?” and I almost raised my hand, I realized that sitting there might not be such a good idea.

I had specifically come to this rally because it was supposed to be especially diverse. And, on the stage at least, it was. The speakers included a black doctor who bashed Democrats for crying racism, a Hispanic immigrant who said that she had never received a single government entitlement and a Vietnamese immigrant who said that the Tea Party leader was God. It felt like a bizarre spoof of a 1980s Benetton ad.