Cory Booker

Democratic New Jersey Senator and presidential candidate Cory Booker made a campaign stop Saturday at Thompson’s point in Portland, where he spoke to a crowd of about 250 people about the need for nuclear energy and gun licensing. He also touched on other big themes in his campaign.

Elise Amendola / AP

U.S. Sen. Cory Booker, a Democrat from New Jersey, will visit Maine Saturday to promote his presidential bid.