




Remember Newt Gingrich calling Mitt Romney a liar? Michele Bachmann saying Romney's unelectable? Rick Santorum calling Romney "the worst Republican in the country" to run against President Barack Obama?
An independent group favoring Republican Mitt Romney is launching a $25 million, monthlong advertising campaign against President Barack Obama in 10 states, further escalating an expensive TV ad war in presidential battleground states less than six months before Election Day.