President Obama has had a bad streak in polls after doing pretty well against Mitt Romney in April, and Republicans are looking strong in Wisconsin and Nebraska.. Here's our guide to today's polls and why they matter.
Findings: Obama and Romney are tied with 45 percent of the vote.
Methodology: Tracking poll of about 3,050 voters polled over the last seven days. The margin of error is +/- 2 percentage points.
Why it matters: While Obama was polling ahead of Romney right as the Republican primary ended, May has been a pretty bad polling month for him, as the Talking Points Memo poll tracking chart shows below.
Caveat: Real Clear Politics' polling average has Obama up by 1.8 percentage points.
Findings: Wisconsin Gov. Scott Walker is leading Milwaukee mayor Tom Barrett in the recall election, with 50 percent to the Democratic challenger's 44 percent.
Pollster: Marquette Law School
Methodology: Survey of 704 registered Wisconsin voters from May 9 to May 12. The margin of error is +/- 4.1 percentage points.
Why it matters: The recall election will help one of the biggest fights in politics that got started last year -- whether the power of public sector unions should be limited. Outside groups are spending millions of dollars on ads on both sides. The candidates' support closely matches Walker's approval rating, which is 50 percent to 46 percent disapproving of his job performance. Walker is portraying the union law passed last year as an act of courage, and the poll shows that might be sticking a little. Seventy percent of independents think he's "decisive."
Caveat: The vote is in just three weeks, though as the Nebraska Senate primary showed, these races can shift pretty quickly.