The latest NBC News/Wall Street Journal/Marist survey has President Obama leading Mitt Romney in Wisconsin 51 percent to 45 percent, largely unchanged from its last poll.
The September survey was conducted before the first presidential debate in which many believed Romney had a stronger performance than Obama. That survey had the race 50-45 in Obama's favor.
The latest survey was conducted Monday through Wednesday and included some responses after the second presidential debate, which was held Tuesday night. But 95 percent of respondents said they had already made up their minds prior to the second debate, and Obama led 50-45 the day before the debate and 51-45 the day after.
In the U.S. Senate race, the poll found Dem Tammy Baldwin up on Republican Tommy Thompson 49-45.
The survey of 1,013 likely voters had a margin of error of plus or minus 3.1 percentage points.