Musk backtracks on pledge to cut $2 trillion in federal spending

The Beat with Ari Melber - A podcast by Ari Melber, MSNBC

MSNBC's Ari Melber hosts "The Beat" on Thursday, Jan. 9, and reports on the Southern California wildfires and Elon Musk's reversal on his federal spending cut pledge. Ken Martin, Chai Komanduri, Douglas Holt-Eakin, and Jacob Soboroff join.