Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
What's the U.S. plan on Russia's "all out" invasion? Plus, a look at the strategy for fighting ISIS.
(CNN) – Conservative Wisconsin GOP Rep. Paul Ryan isn't shutting any doors to 2016.
"I'm not closing my options," the 2012 vice Republican presidential nominee told CNN Chief Washington Correspondent Jake Tapper in an interview appearing on "The Lead" Thursday. "But I'm just not focusing on that right now.”