President Barack Obama gets a 14 point post-convention bump in Wisconsin.

A new Marquette Law School poll shows likely voters prefer the Democratic president to his Republican opponent Mitt Romney, 54 percent to 40 percent. That margin is up from 49 to 46 percent last month. Professor Charles Franklin is the poll director. “That 14-point margin is the biggest we’ve seen all year, that’s a dramatic change from where we were in the pre-convention poll.”

Franklin says independent voters played a huge role in that large bump. A new poll from Quinnipiac also gives Obama a big lead, 51-to-45. Obama’s approval rating is 55 percent favorable and 40 percent unfavorable, while Romney’s is 38 versus 54 percent.

The big question? “Are you better off or not than four years ago?” Franklin says, of those taking the survey, “47 percent: better, 49 percent: not better off. That’s a nearly even balance, but a little bit of a tip in ‘not better off.'”

Asked if “the country as a whole” is better off than four years ago, 46 percent say better while 52 percent say not better. Regarding current economic problems, 30 percent say President Obama is responsible, while 55 percent say former President George W. Bush is responsible.

The Marquette poll also shows U.S. Senate candidates Tammy Baldwin with a 9-point lead over former Governor Tommy Thompson, 50-41 percent.

AUDIO: Jackie Johnson report 1:43

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