Georgia (the state) had to re-vote on a couple of their new license plate designs because one plate had "In God We Trust" on it, and the other plate didn't. I believe the ACLU (or who ever brought up the problem) was worried that people would think that only the one plate would be available with the "In God We Trust" sticker
When the Department of Revenue published the proposed designs, some of them contained the phrase "In God We Trust," while others didn't. It wasn't made clear that the phrase "In God We Trust" wasn't part of any of the designs; it's just an optional sticker that goes where the county name (also a sticker) is usually found on the plate. The miscommunication upset just about everyone because the vote (which was just an online poll, not an official vote) to select a new design effectively became a referendum on whether the state's license plate should contain the phrase "In God We Trust." The Department of Revenue decided to republish the proposed designs without the sticker so that the public could vote again.