On Monday's broadcast of CNN's "Situation Room," Rep. Jim Himes (D-CT) stated that the threat of sanctions alone isn't enough to deter Russian aggression towards Ukraine and urged President Joe Biden to make it clear to Russia that the U.S. will arm Ukraine with defensive weapons. Himes also said that Biden "needs to make sure that Vladimir Putin understands that the Europeans will stop buying energy, that the sanctions will be global, and that going into Ukraine could mean the end of his regime, it would be that costly."