The BBC's Anthony Zurcher says the US president appealed to his base and taunted his opponents in a marathon speech.
US officials say the disruption was caused by old equipment overloading and not a cyber-attack or a Microsoft outage.
Trump will discuss the "reduction of nuclear weapons" during the unprecedented talks, a spokeswoman says.
Supermarkets have started selling Christmas trees - six weeks out from the big day.
The next title in the series is expected to be the biggest video game release ever.
How the parents of Keaton Slater, 12, battled to bring the man who killed him to justice.
These stories represent the consequences of changes that began years ago, rather than being a sudden cultural shift.
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