Summary: Monday on the NewsHour, candidates make their closing arguments to voters as control of Congress hangs in the balance. We examine the detailed, reliable methods used to track each race and announce the winners. Plus, the leader of the violent far-right Oath Keepers militia testifies in his trial for sedition relating to the Jan. 6 attack on the Capitol. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders
