in the oval office. the white house claims that president trump warned the russians not to interfere in any upcoming u.s. elections. norah. >> o'donnell: all right, ben, thank you. despite the impeachment push, a rare bipartisan deal here in washington. democrats signed off on the u.s.m.c.a.-- that's the president's signature trade pact with mexico and canada. house speaker nancy pelosi said the updated bill gives protections to labor unions and the president calls the agreement the silver lining to impeachment. he has been pushing for a deal for more than a year. a final vote in the house is expected next week. 50 million americans are in for weather whiplash tonight as temperatures from mississippi to maine plunge from record highs to frigid lows. snowy scenes like these in eerie county, pennsylvania, could play out from virginia to new england. let's get the forecast from lonnie quinn. of wcbs in new york. as i understand, lonnie, this could mean a messy morning commute for many. >> you betcha. i think it will be along the heavily traveled i-95 corridor. i'm specifically watching the