Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
Fmr. national security adviser Stephen Hadley, and the latest on the crisis in Ukraine.
While you were doing your last-minute Christmas shopping, way up high - more than 200 miles above the planet - two astronauts were taking part in a risky spacewalk.
The astronauts were on a mission to fix a cooling pump malfunction on the International Space Station, a critical problem that, if left unattended, could have resulted in an evacuation.
CNN's Alina Machado updated Dana Bash on the situation.