WASHINGTON (AP) — Gliding over significant challenges still to come, President Donald Trump on Friday offered a rosy update on the race for a vaccine for the resurgent coronavirus as he delivered his first public remarks since his defeat by President-elect Joe Biden. He still did not concede the election.

Trump spoke from the the Rose Garden as the nation sets records for confirmed cases of COVID-19, and as hospitalizations near critical levels and fatalities climb to the highest levels since the spring. He said a vaccine would ship in "a matter of weeks" to vulnerable populations, though the...