I'm curious...

A few posts back I publicized a straw-poll on Heath Haussamen's website, nmpolitics.net:

"Do you approve of the job Martin Heinrich is doing as U.S. representative for the 1st Congressional District?"

I just checked results to date:

Yes - 53%
No - 45%
Don't Know - 2%

So I'm curious.
This is a voluntary poll - you have to click the button to participate.
Why are folks who don't know clicking the button???