"SNL": Jason Sudeikis and Larry David return to skewer Democratic debate

The latest "Saturday Night Live" cold open saw several guest stars return to parody Friday's Democratic debate in New Hampshire and the Iowa caucus app problems.

Details: The "SNL" debate saw Larry David's Sen. Bernie Sanders take on Jason Sudeikis' Joe Biden, Rachel Dratch's Sen. Amy Klobuchar and regular cast members. David's Sanders said he had an idea for the app "mess": "It's called no apps."

Go deeper: 4 key takeaways from the Democratic debate in New Hampshire