Today's politics schedule looks like a snoozer. But wait! There's more! The primaries in Maryland (37) and the District of Columbia (19) look largely safely in Mitt Romney's delegate column, adding to his existing 568. Wisconsin too (42), although Rick Santorum has campaigned hard there. Since Iowa, where Santorum campaigned for a year to win the caucuses by two dozen votes, Romney has ruled the Midwest. He plans an election night event in Wisconsin, usually a strong sign that internal polls indicate a likely win. But even if the Pennsylvanian pulled off a Badger upset, he'd still have less than...