By Libby Lewis, CNN
(CNN) – Walk into White House Gifts in Washington, and the display is right up front: bumper stickers, buttons, T-shirts and hats.
Mitt Romney’s on one side; Barack Obama’s on the other.
There are scientific ways to take the pulse of the public and figure out who’s ahead in the presidential race.
This is the fun way. Count the bumper stickers and the buttons and the hats that get snapped up.
That’s what White House Gifts owner, Jim Warlick, has been doing since 1988. He calls it the USA Button Poll. He’s gotten it right every election, except for one. (Listen to find out which one.)
And General Manager Andrew Gallagher says, this year, the poll is getting more high tech:
[2:24] "We’ll actually have voting machines here in the store – so people can do it right here. We just want to make it that much crazier."
Some of the bumper stickers for sale are pretty good:
For the GOP: "WHEN I WAS YOUR AGE, THERE WAS A MIDDLE CLASS."
For the Democrats?: "TEA PARTIES ARE FOR LITTLE GIRLS…WITH IMAGINARY FRIENDS."
You can see the percentages online at USAButtonPoll.com.