More than 50 interviews with Democratic leaders revealed a party struggling to decide what it believes in, what issues to prioritize and how to confront an aggressive right-wing administration.

A tough new assessment says the Democratic Party needs to reassess the loss of support among groups of voters it has long taken for granted.

A poll from The New York Times and Ipsos found that Americans believe abortion, L.G.B.T.Q. issues and climate change concern Democrats more than the cost of living.