Tonight the major winter storm turning deadly and pushing east, causing chaos on the roads and at the airports.

The nation's capital shut down as the massive storm spread snow from the Midwest to the mid-Atlantic.

The extreme weather blamed for at least four deaths.

Dangerous driving, hundreds of crashes, vehicles sliding on the road.

Nearly 2,000 flights canceled

a ground stop at Chicago O'Hare. Our team across the storm zone and Al Roker tracking it all.

And as snow slammed Washington, Congress convening to certify President-elect Donald Trump's

election victory on the fourth anniversary of the January 6th attack.

And Vice President Kamala Harris, what she told us before overseeing the certification after her loss.

Also tonight, President Biden in New Orleans meeting with victims' families after the deadly terror attack, our new reporting.

Concerns about the city's new barriers weeks before the Super Bowl,

as the FBI releases video shot by the attacker.

The first human death from bird flu in the U.S., what we know.

Canada's embattled Prime Minister Justin Trudeau,

announcing he's stepping down amid plunging polls and Donald Trump's

terror threats.

This is NBC Nightly News with Lester Holt.

Good evening and welcome.

What for many was a Back to the Grind Monday after a long holiday break turned into a travel

nightmare due to a powerful and deadly winter storm that sliced

its way across the country from the plains and Midwest all the way to Washington, D.C., where that

city virtually shut down under its largest snowstorm in three years. At least four storm-related

...