An overflow crowd waits to get into the gymnasium at the Chelsea Elementary School to cast their votes at a Republican caucus Saturday in Chelsea.

Voters walk to a Republican caucus Saturday in Chelsea. A large turnout forced some voters to park more than a half-mile away from the Kennebec County caucus location at the Chelsea Elementary School.

Curtis Ayotte, former chairman of the Kennebec County Republican Party, directs an overflow crowd waiting to get in to cast their votes at a Republican caucus Saturday in Chelsea.

People gather in large crowds at Greely Middle School for the Republican Caucuses in Cumberland on Saturday.

Voters started showing in Cumberland up an hour before the doors opened at 8 a.m. at Greely Middle School.

Frank Nelson and Joan Nelson place their Republican caucus ballots into the voting box at Greely Middle School for the Republican Caucuses in Cumberland on Saturday. The pair has never caucused before in any presidential election. "It's so important. I love my country, and I want everything to be better. " Whitney Hayward/Staff Photographer

People wait at Greely Middle School for the Republican Caucuses in Cumberland on Saturday. Whitney Hayward/Staff Photographer

The halls of Greely Middle School were crowded Saturday morning. Whitney Hayward/Staff Photographer

Maine voter Michael Hein holds a sign expressing his desire to see Maine Gov. Paul LePage chosen to run as a vice presidential nominee with Donald Trump in the presidential election, at a Republican caucus Saturday in Chelsea. The Associated Press

A voter casts her secret ballot at a Republican caucus Saturday in Chelsea. The Associated Press

Gov. Paul LePage speaks at a Republican caucus Saturday in Chelsea. The Associated Press

A large crowd gathered Saturday at Westbrook High School to participate in a Republican Party caucus to choose a candidate for president.

Republican voters caucus Saturday at Westbrook High School, one of multiple venues across the state.

A man interrupts a speech by Gov. Paul LePage at a Republican caucus Saturday in Chelsea.

An overflow crowd waits to get in to cast their votes at a Republican caucus Saturday in Chelsea.