couple more years. adriana. >> diaz: scott macfarlane, thank you. sarah palin is returning to politics. the republican and former alaska governor has joined a field of 50 other candidates. that is crowded. they're all vying for the state's lone u.s. house seat. it had been held by representative don young, who died last month. a new covid wave could be coming, testing our ability to live with the virus. cbs' michael george joins us with the details. michael. >> reporter: adriana, good evening. covid is down, but not out. and health experts are concerned the u.s. isn't doing enough to prepare for a potential spike of the ba.2 subvariant opinion today, new york city's mask mandate for two- to four-year- olds remains in place after an appeals court stay late friday. the ruling has the support of mayor eric adams. >> covid is a-- a formidable opponent, and we're going to