Happening now, tearful plea, Savannah Guthrie and her siblings are begging for their mom Nancy's return.

Plus, what they're saying about possible ransom notes.

Also, new CNN reporting about why Director of National Intelligence Tulsi Gabbard was at an FBI search at election offices in Georgia.

We'll speak to a member of the Fulton County Board of Commissioners just ahead.

And quote, he should be very worried.

That's President Trump's message to Iran's supreme leader.

Will that threat stall or spur negotiations between the two countries?

And later, Trump RX set to launch,

will the President's prescription drug platform

really lower costs for your medications?

Welcome to our viewers here in the United States

and around the world.

I'm Wolf Blitzer with Pamela Brown,

and you're in the situation room.

Happening now, the search for Nancy Guthrie enters an agonizing fifth day.

Her adult children, including NBC's Savannah Guthrie, release a truly heart-wrenching video.

They're thanking the public for its outpouring of support that swept across the nation,

and they're pleading with anyone behind her abduction

to prove that she's still alive.

Here's the family's entire recorded message,

and we'll keep the tip line number on the screen.

On behalf of our family, we want to thank all of you for the prayers for our beloved mom, Nancy.

...