Maine Democrats head to the caucus today, and turnout is so high in some areas that the actual "caucus" part of the caucus has been canceled and voters will simply turn in a paper ballot to avoid overcrowding venues. According to the Maine Democratic Party, this is to ensure that everyone is able to actually vote and is consistent with party rules.
Pictures from caucus sites showed long lines and voters reported waiting hours to vote:
Maine is widely expected to be an easy win for Bernie Sanders. Republicans in Maine, who caucused yesterday, also turned out in record numbers. Ted Cruz won a surprise victory over Donald Trump.
UPDATE: Maine might be going back to primaries after this.
This post has been updated.