shreddin' the gnar. >> that is when you drag your foot behind you and you flip. will be pretty darn cold around here. >> look at those numbers. those actual temperatures potentially early on sunday morning, that is outrageous. >> even diehard skiers are not skiing next weekend. >> is just very, very cold. >> is that the windchill? >> overnight saturday night into sunday morning. [captioning performed by the national captioning institute, >>> breaking news tonight. what donald trump just threatened to do. trump tonight saying he might sue ted cruz over being born in canada. >>> and on the other side, bernie sanders is asked, is he standing in the way of history? the first woman president. how he answers. >>> and a horrific machete attack at an american accident. >>> and, temperatures not seen in almost 100 years.