President Barack Obama and Mitt Romney are essentially tied among registered voters as Republicans gather for their national convention, a poll shows.
The CBS News poll shows Obama with support from 46 percent of registered voters, while Romney is backed by 45 percent. Eight in 10 voters say their mind is made up.
The finding comes as the Republican National Convention is under way in Tampa, Florida. Democrats will assemble next week for their national convention in Charlotte, North Carolina.
Romney is seen as the candidate who will do a better job on the economy, while voters say they think Obama will do more to help the middle class, the poll shows.
A majority -- 55 percent -- say Obama’s presidency has brought more disappointment than satisfaction. Most Republicans are disappointed, as are 18 percent of Democrats.
The poll, which was conducted Aug. 22-26, has a margin of error of plus or minus three percentage points.
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