The Situation Room With Wolf Blitzer

Trump lashes out at Pelosi, Dems in new series of angry Tweets over impeachment; Pentagon watching for provocations after North Korea fails to deliver "Christmas gift"; GOP sources: McConnell open to setting rule for impeachment trial without Dem leader's support; GOP and Dems dig in amid impeachment trial impasse; Republicans waiting for Pelosi to send articles of impeachment to senate; Washington Post: U.S. Cybercommand could target Russian officials in event of 2020 election interference; Rocket forces Israeli PM Netanyahu off stage at political rally as he faces party challenge; Netanyahu claims victory in party leadership contest; Facing Primary challenger, Netanyahu copies Trump playbook via Knit