Early voting: Tighter race, but still good signs for Clinton

Hillary Clinton may not be accumulating the type of early-vote advantage her campaign wanted, but she continues to maintain an apparent edge over Donald Trump, with roughly one-fourth of all expected ballots cast in the 2016 election.

The Democrat's campaign once hoped to bank substantial votes from Democrats in North Carolina and Florida before Election Day. Both are must-win states for Trump.

But data about the early vote suggest she is not doing as well as Barack Obama in 2012. Ballot requests from likely supporters have been weak in parts of the Midwest, and African-American turnout has fallen, too.