Romney wraps GOP nod, now for Obama

With the Republican presidential nomination all but in hand, Mitt Romney is refocusing his efforts on challenging President Barack Obama, raising cash for what may be the most expensive presidential contests in American history.

“This is the start of a new campaign,” the former Massachusetts governor said as he celebrated a sweep of five primaries. He blasted Obama as a man whose time in office has been marked by “false promises and weak leadership” in a time of economic struggle.

The contests were the first since Rick Santorum conceded the race. The former Pennsylvania senator said he intends to sit down with Romney and his representatives in the next week or two.