As Clinton stumbles, Trump takes an apparent slim lead in new tracking poll

The L.A. Times reports:

As the presidential race moves into a key two-week period, with the announcement of running mates and the party conventions, Donald Trump has taken an apparent slim lead over Hillary Clinton, based on strong support from white voters, particularly men.

That finding, from a USC Dornsife/Los Angeles Times Daybreak tracking poll, a new survey that begins publication Friday, marks a significant shift in a race that most polls indicated Clinton has led since mid-May.

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