Here are the details from Erick Erickson at RedState (emphasis in the original):
If I were one of the Texas-22 citizen questioners attending this debate, I would ask a simple question of Congressman Lampson: does Lampson anticipate getting his wife’s vote in the November election?
Turns out, according to sources we have in Texas, that Nick Lampson’s wife is not even registered to vote in Texas 22.
She lives in Beaumont, TX – at an address well outside of the district – and this is where she is registered. She’s in the 2nd District, and is represented by Republican Ted Poe. The address is on Collier Road in Beaumont.
Why does it matter? Well, you can find out why at the link.
You can donate to Pete Olson’s campaign here.