WASHINGTON The race between U.S. President Barack Obama and Republican challenger Mitt Romney remained in a dead heat ahead of Tuesday's election, according to a Reuters/Ipsos daily tracking poll released on Sunday.
Of 3,805 likely voters polled nationally, 48 percent said they would vote for Democrat Obama, while 47 percent sided with Romney, a former Massachusetts governor, the poll showed.
The results fall within the poll's credibility interval, a tool used to account for statistical variation in Internet-based polls.
Obama and Romney have been locked in a neck-and-neck race for weeks. Over the weekend, both were making final appearances in a few crucial states, hoping to sway a shrinking number of undecided voters and to encourage their supporters to get to the polls.
The poll's credibility interval was plus or minus 3.4 percentage points for likely voters.
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