Hillary Clinton and Donald Trump are all but tied in the latest Washington Post-ABC News Tracking Poll, which finds Clinton backers slipping behind in enthusiasm even as the Democrat has an edge in early voting.
The Washington Post reports that the tracking poll finds little shift in Clinton's overall support following news of the FBI's renewed look at Clinton e-mails, but strong enthusiasm among her supporters fell behind Trump in combined Saturday and Sunday interviews.
By 53 to 43 percent, more Trump supporters say they are "very enthusiastic" about him, compared with Thursday and Friday when Trump's edge was negligible (53 percent vs. 51 percent).
Trump and Clinton continue to run nearly even in overall vote preferences, with Trump at 46 percent and Clinton 45 percent in a four-way contest in the poll conducted Thursday through Sunday.
The margin is a mirror 48-47 Clinton-Trump split when third-party candidates are asked which major-party candidate they lean toward, a comparison which has grown in importance as support declines steadily for Libertarian Gary Johnson and the Green Party's Jill Stein.
Over 1 in 5 likely voters identified in the Post-ABC poll report as having already voted (21 percent), while about one-quarter say they plan to vote early or by mail (24 percent,) and a slight majority plan to vote in-person on Election Day.
The level of early voting so far is roughly in line with expectations given the 24.7 million early votes tracked so far by the United States Election Project, which amounts to 19 percent of the 129 million ballots cast in 2012.