Dems sharpen attack as GOP rallies behind Romney

MILWAUKEE — Pres­i­dent Barack Obama’s admin­is­tra­tion launched a multi-pronged assault on Mitt Romney’s val­ues and for­eign pol­icy cre­den­tials Sun­day, while a fresh set of promi­nent Repub­li­cans ral­lied behind the GOP front-runner as the odds-on nom­i­nee, fur­ther signs the gen­eral elec­tion is over­tak­ing the pri­mary season.