Sanders faces a challenging 30 days in his quest to defeat Biden

Joe Biden’s stunning turnaround in the past week has put pressure on Bernie Sanders to blunt or reverse the former vice president’s momentum. It won’t take long to determine whether the senator is up to the challenge.

After the events of the past week, the one-on-one competition between Biden and Sanders is just beginning but already the calendar says their battle is at an advanced and potentially decisive stage. Assumptions that Democrats are headed toward a genuinely contested convention might well be wrong. CONT.

Dan Balz, Washington Post