Sweeps Washington and Maryland

Mitt Romney won Wisconsin’s primary Tuesday night, increasing the pressure on his rivals to exit the GOP presidential race.

The television news networks projected Romney as the winner at 9:30 p.m. ET, about 90 minutes after the polls closed.

With 56 percent of precincts reporting, Romney had 42 percent of the vote, with second-place finisher Rick Santorum taking 38 percent. Ron Paul came in third with 12 percent, followed by Newt Gingrich at 6 percent.

For more on this story, head to the Hill at http://thehill.com/homenews/campaign/219839-mitt-romney-wins-wisconsin-primary-adds-to-delegate-lead