Biden's evolving reasons for his bad debate: A cold, too much prep, not feeling great and jet lag

WASHINGTON (AP) — President Joe Biden has offered plenty of excuses for his terrible performance in last week's presidential debate. None of them have done much to assuage Democrats' concerns about Donald Trump returning to the White House.

For its part, Biden's White House insists these are explanations, not excuses. But they have only intensified the concerns Democrats have about their presumptive nominee's readiness.

In the initial moments of Thursday's debate, shortly after the 81-year old Biden claimed to a baffled audience that “we finally beat Medicare,” aides said the president was suffering from a cold.