A bumber sticker likely put their by a Democrat that happens to be "pro-choice".
Bummer...
I put a Bush sticker on the window at demokkkrats headquarters at a little town in SC once. Last election, the demokkkrat hq was right down the street, maybe 50 feet from the Republican HQ. I had every Republican sticker on my truck that was available, and parked it in front of the demos office.
Dilemma solved.