NBCUniversal October 4, 2019 6:15 pm Possible 3rd District Rematch Dan Koh could take on Rep. Lori Trahan again after narrowly losing to her last year. US & World Videos 24:50 @Issue: Biden signs the foreign aid bill, and a retrospective of Boston's 2024 Olympics bid 2:15 Opening statements made, witnesses called in hush money trial against Donald Trump 24:46 @Issue: Trump “hush money” trial underway 2:08 Boston announces first chief climate officer 3:07 What's working for Biden's campaign — and what's not working for Trump