According to the polls, the Democrats are poised to take back both the House and the Senate in the upcoming U.S. midterm elections — a prospect that would have seemed improbable a year ago. But the polls have been wrong before. While Donald Trump's approval ratings have hit an all-time low, a lot can change for the Republican Party between now and Nov. 3. Washington correspondents Katie Simpson, Willy Lowry and Paul Hunter take a look at where the midterm races are heating up, what's at stake for Republicans and Democrats, and just how worried Trump might be. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: https://www.cbc.ca/news Follow CBC News on TikTok: https://www.tiktok.com/@cbcnews Subscribe to CBC News on Snapchat: https://bit.ly/3leaWsr Subscribe to CBC News on WhatsApp: https://www.whatsapp.com/channel/0029Vb6MSjH9Bb63S9tbQa1Y Download the CBC News app for iOS: http://apple.co/25mpsUz Download the CBC News app for Android: http://bit.ly/1XxuozZ »»»»»»»»»»»»»»»»»» For more than 80 years, CBC News has been the source Canadians turn to, to keep them informed about their communities, their country and their world. Through regional and national programming on multiple platforms, including CBC Television, CBC News Network, CBC Radio, CBCNews.ca, mobile and on-demand, CBC News and its internationally recognized team of award-winning journalists deliver the breaking stories, the issues, the analyses and the personalities that matter to Canadians.