First: A worldwide IT outage causes dozens of flights around the globe to be grounded this morning, with major airlines including American, Delta, and United all impacted. Also affected: banks and stock exchanges in Europe and Asia. CNN's Marc Stewart begins our coverage in Beijing.
Plus: In a lengthy speech accepting the GOP nomination, Donald Trump called for unity as he recounted his near-death experience. Then he went off-script with political attacks and falsehoods.
And: Sources close to President Biden say he's now considering dropping out of the race.
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