All coverage
'Did I make you proud?': Biden team blasts out post-debate fundraising plea hours before debate kicks off
By Caitlin Oprysko
Democratic polls 2020: Pete Buttigieg rises in Iowa and New Hampshire, Biden back atop delegate hunt in latest CBS News Battleground Tracker
By Fred Backus, Anthony Salvanto & Kabir Khanna
Saint Anselm poll: Buttigieg surges to 10 percentage point lead over Biden, Warren in NH
By Adam Sexton & John DiStaso
While leading nationally, Joe Biden faces headwinds in Iowa
By Musadiq Bidar & Adam Brewster
Why Joe Biden Resonates With Blue-Collar Voters (Published 2019)
By Katie Glueck & Jonathan Martin