Hey there from CNN, I'm Chris de Boe with the five things you need to know for Friday, July 19th.

Tech disruptions worldwide have hit airlines, banks, businesses, and even emergency services today.

The outage stemmed from a software update for Microsoft Windows system issued by the

Cybersecurity firm Crowd Strike, its CEO said.

CNN's Tom Foreman has more.

Crowd strike is saying the key issue has been identified

and they have isolated this one thing

that they have to deal with here,

and that's being updated around the world right now.

All over the world there are problems so even if they fix the core problem, this is like a leak in your

basement. Even when you cut the water off, you still got a big mess down there to

deal with. Airports worldwide were chaotic this morning as many passengers waited for

hours. The number of flights that have been canceled today in the US is approaching 2000 according to flightaware.com.

Many major airports and airlines like United and Delta are urging flyers today to allow for extra time at the airport and to check for

delays and cancellations. And your packages from UPS may be delayed as the

company warned they're experiencing some issues too. More than two dozen Democratic lawmakers have been coming out to say President Joe Biden should step aside in the 2024 race.

But his campaign chair Gen O'Malley Dylan said today on MSMBC, he's in.

Absolutely the president's in this race.

You've heard him say that time and time again,

Joe Biden is more committed than ever

to beat Donald Trump.

The president is currently more isolated than he's ever

...