Here’s the latest National News from CBS Radio News:

Theresa May was photographed signing Article 50, the letter that begin the irreversible process of leaving the EU
Democrats say Nunes appears to be coordinating with the White House
The administration has begun to roll back regulations that cut power plant emissions of CO2, a greenhouse gas that's warming the planet
After President Kennedy's death, Jackie Kennedy started a correspondence with the former British ambassador to Washington, David Ormsby-Gore
Pictures from above show players jumping, dunking and taking shots during March Madness
Faced with an unreceptive president, Ben Santer fears the government will intimidate scientists who study the issue
The president hailed his executive order as "the start of a new era in American energy production"
If all Republicans vote in favor of his nomination, they would only need eight Democrats to advance it and confirm him
What surprised "60 Minutes" producers who reported on "stories that are provably false" -- and why arguing about it "is like going down the rabbit hole"
Enjoy the gorgeous explosions of blooming flowers across the country as spring 2017 arrives.
Transgender and gender non-conforming youth are finding a community of friends on social media
CBSN Originals reports on the transgender youth so often overlooked in the national conversation
It's not just babies and animals, but there's a healthy dose of that, too
The ever-youthful Amazon princess - one of the most iconic and inspiring comic book superheroes ever - wields her super powers in “man’s world” to fight for justice and gender equality