Cheryl Young of Bath, center, holds a sign in support of the lobster industry during a rally outside on Commercial Street in Portland on Wednesday. Multiple speakers at the rally called on Maine Attorney General Aaron Frey to launch a a suit that would challenge federal requirements intended to protect an endangered species, the North American right whale.

U.S. Rep. Jared Golden-D, third from left, stands among a crowd of about 350 during a rally for the lobster industry outside DiMillo's on the Water on Commercial Street in Portland on Wednesday.

Conservative radio host Ray Richardson, who served as master of ceremonies for rally in Portland on Wednesday, speaks to a crowd of about 350. Richardson and others called on Maine Attorney General Aaron Frey to launch a a suit that would challenge federal requirements intended to protect an endangered species, the North American right whale.

Former Gov. Paul LePage and former U.S. Rep. Bruce Poliquin, both of whom are running for their old seats, converse during a rally for the lobster industry in Portland on Wednesday.

Lobsterman Jim Hanscom of Bar Harbor calls out the politicians in the crowd to act on a proposal for Maine to sue the federal government against requirements intended to protect an endangered species, the North American right whale, during a rally in Portland on Wednesday.

Forrest Moody, right, a 36-year-old lobsterman from Harpswell Neck, holds a sign with two dolls meant to represent his niece and nephew during a rally on Commercial Street in Portland on Wednesday. The rally was attended by political figures including former Gov. Paul LePage, third from left, Bruce Poliquin, fourth from left, and U.S. Rep. Jared Golden, center.

Ed Thelander, who is running to unseat U.S. Rep. Chellie Pingree in Maine's 1st Congressional District, speaks to a crowd of about 350 during a rally for the lobster industry outside DiMillo's on the Water on Commercial Street in Portland on Wednesday.

Hundreds of lobstermen, their families, supporters and political figures rallied on the Portland waterfront Wednesday afternoon, calling for the state to sue federal regulators and stop proposed rules the fishermen say will decimate their industry.