Catholic schools are right to ban politicians who support abortion rights from giving their commencement addresses, according to Kathryn Jean Lopez. She notes a Boston Globe story that points out that prominent Catholic Democrats — Sen. John Kerry (Mass.), Edward Kennedy (Mass.) and House Speaker Nancy Pelosi (Calif.) — are giving speeches only at secular schools. The Catholic schools’ decision is “one leadership step” that shows how they’re different, Lopez writes. David Freddoso, meanwhile, lampoons freshman Rep. Chris Carney (D-Pa.) for endorsing Hillary Clinton after his state