Behind Enemy Lines: Cross-Party Speakers at Political Conventions - PICTURES

Aug. 28, 2012, 2 a.m.

There’s noth­ing like a speak­er from the op­pos­ite party to bring a party’s cros­sov­er ap­peal home. That ef­fect will be on dis­play on Tues­day night when Ar­tur Dav­is, the former Demo­crat­ic con­gress­man from Alabama, takes the stage at the con­ven­tion. Here’s a look at oth­er not­able cros­sov­er speak­ers at na­tion­al polit­ic­al con­ven­tions.