On Tuesday, the U.S. holds its midterm elections. That means all 435 seats in the House of Representatives are up for grabs, as are about a third of the Senate's seats. These midterms are significant. It's the first big round of elections since Joe Biden became president, since rioters stormed the Capitol and since Roe v. Wade was overturned. The results could impact American policy for years to come. Today, CBC Washington correspondent Paul Hunter talks about some of the tight races, and what makes them so consequential.