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KNOW IT ALL: Wednesday's Top Stories at NBC News

A look at the key headlines.
IMAGE: Tropical Storm Julia
Satellite imagery shows tropical storm Julia along Florida's northeast coast on Tuesday, Sept. 13, 2016.NOAA

Good morning. Here's what NBC News is following this morning:

Our Top Headlines

Trump a 'national disgrace,' hacked emails reveal

Former Secretary of State Colin Powell blasted Donald Trump as a "national disgrace" and "international pariah" in a personal email exchange that was leaked online by hackers.

The retired 4-star general confirmed the authenticity to NBC News and warned: "The hackers have a lot more." Read more in POLITICS.

N.Y. AG reveals inquiry into Trump's nonprofit

New York Attorney General Eric Schneiderman has made inquiries into the Trump Foundation after questions about impropriety. The Trump campaign shot back that Schneiderman, who supports Hillary Clinton, is "a partisan hack."

A source familiar with the matter told NBC News that correspondence with the foundation began on June 9. Read more in POLITICS.

Hacker 'Guccifer 2.0' releases more DNC docs

The hacker or hackers who claim to have broken into Democratic Party systems released more documents Tuesday, including what appeared to be the personal cell phone of vice presidential candidate Tim Kaine. Read more in POLITICS.

Tropical storm soaks Florida, 6 million under flash flood watch

The storm was 50 miles north of Jacksonville with maximum sustained winds of 40 mph at 5 a.m. ET on Wednesday, forecasters said.

It was expected to dump between 3 and 6 inches of rain on northeast Florida, Georgia and parts of the South Carolina coastlines through Friday afternoon. Read more in NEWS.

What We're Watching

  • Hillary Clinton will return to campaign trail: She'll be back campaigning Thursday, her spokesman said, after canceling events this week following a bout with pneumonia.
  • Former Israeli President Shimon Peres 'serious but stable': The 93-year-old Nobel Peace Prize laureate suffered a major stroke on Tuesday, and doctors are continuing to monitor his condition.
  • No aid expected to reach eastern Aleppo: The hard-hit Syrian city won't see any much-needed humanitarian aid, including food rations, today as the U.N. awaits confirmation of safe access for its convoys.
  • Carla Hayden to lead the Library of Congress: The 64-year-old will be sworn in today by Chief Justice John Roberts becoming the first woman and the first African-American to serve in the role.

What's Trending TODAY?

No-go: A slow-moving train in Pennsylvania might have brought some runners' dreams of the Boston Marathon to a halt.

Selfie time: First lady Michelle Obama was on "The Ellen DeGeneres Show" on Tuesday and gave the daytime TV host — along with A-lister Bradley Cooper — a helping hand.