Lines stretched outside to check-in and vote during the Kennebec County Republican caucus on Saturday at Chelsea Elementary School.

Lines to vote stretched down hallways and around the gym during the Kennebec County Republican caucus on Saturday at Chelsea Elementary School.

Wilton resident Eileen Adams speaks to other residents in support of Bernie Sanders during a well attended Democratic caucus on Sunday. State politicians are considering changing from a caucus system back to a primary system after record turnout caused lengthy delays at many sites this past weekend.

Wilton resident Charles Woodbury makes a point during the Democratic caucus in Wilton on Sunday. State politicians are considering changing from a caucus system back to a primary system after record turnout caused lengthy delays at many sites this past weekend.

More than 100 people lined up to be counted Sunday in support of Vermont Sen. Bernie Sanders during the Democratic Party caucus in Gardiner.