periods norah: we are in ukraine as russian forces advanced with eight at the center of an urgent meeting between president biden and top congressional leaders. this is an existential moment for the free world. we must take care of america s needs first. norah: cbs evening news starts now. good evening, i m norah o donnell, thank you for being with us. 40 million people in the path of a severe storm threat rolling across the country, heavy snow caused travel chaos at the nation s airports with more than 3,000 flights delayed, and the biggest threat from this dangerous weather will come overnight from missouri to michigan, massive winds, hail, and possible tornadoes. we are going to have more on that dangerous system in just a minute. first, we want to begin tonight here in washington with the age-old story of congress reaching into the last minute to get its job done. the issue is a potential government shutdown friday night and the decision to fund ukraine or r