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Updated at 1:30 a.m. ET Monday

At least two people have been killed as the Houston area continues to be inundated by torrential rain and catastrophic flooding from Tropical Storm Harvey, which officials called an "unprecedented" weather event that has left thousands of homes flooded, stranding some people and overwhelming rescue workers.

On Tuesday, Donald Trump Jr. – shown here speaking in New York on June 5 – tweeted images of emails from June 2016 pertaining to meeting with a Russian attorney.
Kathy Willens / Associated Press

On Tuesday, Donald Trump Jr. tweeted images of emails regarding his 2016 meeting with a Russian lawyer.

President Donald Trump with Vice President Mike Pence and House Speaker Paul Ryan during his remarks Tuesday.
Pablo Martinez Monsivais / AP

Tuesday night, President Donald Trump addressed a joint session of Congress for the first time. NPR annotated his remarks, as well as the Democratic response.

John Minchillo / AP

Donald J. Trump has been sworn in as America's 45th president. NPR reporters have annotated Trump's inaugural address.

Seth Wenig / AP

The NPR Politics team and reporters across the newsroom have annotated the news conference with President-elect Donald Trump that took place in New York on Wednesday.

Pablo Martinez Monsivais / AP

The NPR Politics team and reporters across the newsroom have annotated the farewell address that President Obama delivered in Chicago on Tuesday evening.

Meg Kelly
NPR

Democrat Hillary Clinton and Republican Donald Trump face off in the final presidential debate Wednesday night at the University of Nevada, Las Vegas, and NPR Politics is live-annotating the debate.

Saul Loeb / AP

Republican Donald Trump and Democrat Hillary Clinton face off in the second presidential debate Sunday night at Washington University in St. Louis, Missouri, and NPR's politics team is live-annotating the debate.

The Stream is your source for news, photos and analysis from NPR's political team on the ground in South Carolina and Nevada. For more coverage and analysis visit NPR Politics or elections.npr.org.

In 1957, Joel Healy witnessed one of the largest nuclear tests ever conducted on U.S. soil.

Healy was in the U.S. Army, stationed in the Nevada desert north of Las Vegas at Camp Desert Rock. He was 17 years old and a private first class at the time.

Healy drove dump trucks, moved materials, and built structures, like houses, that would be destroyed by the explosions so the Army could study the effects of a nuclear blast. He also helped build the towers where many of the bombs were detonated.