GREEN BAY, Wis. – Mitt Romney is looking for a sweep in today’s three Republican primaries, expecting to tighten his grasp on the party’s nomination.

Regardless of the outcome in Wisconsin, Maryland and Washington, D.C., the GOP front-runner is rapidly shifting toward the general election – and the challenges of President Barack Obama’s better-financed and better-organized opposition.

These days, Romney is ignoring his Republican rivals and taking it to the Democratic president, whom he accused Monday of “crushing dreams” with a “government-centered society.”