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Tens of thousands of Puerto Rico residents are fleeing to Florida after Hurricane Maria, leaving behind an island that is still struggling to regain power more than one month after the storm.

Our weekly roundup of the news, notes and chatter about the prospects for the next Democratic presidential race:

Heavy rains and strong winds are forecast for the northeastern US this weekend, but it could have been much worse. CNN's Chad Myers has the details.

The CIA mulled mafia hits on Cuban President Fidel Castro. Someone called the FBI threatening to kill Lee Harvey Oswald a day before Oswald's murder. And the US examined sabotaging airplane parts heading to Cuba.

President John F. Kennedy's death sparked decades of competing conspiracy theories. Some have been referenced, even recreated, in pop culture.

You won't hear about her death from officials investigating the aftermath of Hurricane Maria, but you should know her name and her story.

Jake Tapper, in partnership with FactCheck.org, looks at a claim that President Trump is making about his corporate tax plan. Read more at FactCheck.org