A Democrat backs Republicans on gun control? It just happened.
Americans for Responsible Solutions, founded by former Rep. Gabby Giffords and her husband Mark Kelly after the Sandy Hook school shooting, backed Sens.Toomey and Kirk for their support of gun legislation. To some Democrats, it looks like a political stab in the back.
This week, a leading gun-control group that was founded by a former Democratic member of Congress endorsed two Republican incumbent senators. If that weren't bad enough, the endorsements came in toss-up races that Democrats would dearly love to win.
It was a highly unusual crossover on a...