Trump's moment: Speech to close GOP convention's final day

Donald Trump's address Thursday on the convention's final day will cap a roller-coaster 13 months since the freewheeling business mogul announced his bid for president, took over the Republican Party and became its unlikely nominee.

Thursday offers Trump a final opportunity to try to cast a presidential image before the attention shifts to the Democratic National Convention next week.

Though he's appeared briefly during the convention already, this will be one of his biggest opportunities of the campaign to speak to supporters, opponents and those still making up their minds.

Can Trump sell himself as a unifying force, or will he return to the us-versus-them mentality that's been a hallmark of his campaign?

Nothing the anti-Trump forces say or do now can revoke his status as the GOP nominee, but an outburst would be embarrassing for Trump and would highlight lingering divisions within the party.

Will anyone upset what's supposed to be an uplifting celebration of the GOP nominee?

Peter Thiel, the co-founder of PayPal, will become one of the first openly gay people to speak at a GOP convention when he addresses delegates.

On the few occasions where speakers have mentioned gay rights so far in the convention, there's been awkward silence or just a smattering of polite applause.