President Donald Trump, seeking to help Republican Sen. Susan Collins in a tough reelection battle in Maine, is exempting some imports — including plywood sheets, packing crates and some machinery — from the 50% tariffs he slapped on $20 billion worth of Canadian products over the summer.

The campaign in Maine’s rural 2nd District features an ideological contrast between a left-wing Democrat and a Trump-like former Republican governor.

Lobsterman Steve Train starts every workday before dawn about $1,000 in the hole, a hike in expenses driven by soaring fuel costs that are hammering Maine's flagship maritime industry ahead of US midterm elections.

Cortez joins Maine U.S. Senate nominee Troy Jackson at a "Students vs. Billionaires" town hall in Portland to address rising tuition costs, rent prices, and corporate influence in government.

Democrats could gain control of multiple New England state legislatures and governorships, potentially turning the region into a near one-party stronghold.

The scramble to replace Graham Platner on Maine's U.S. Senate ballot is only one of the showdowns this summer over the Democrats' direction.

CNBC's Megan Cassella reports from Portland, Maine on how U.S.-Canada trade tensions and the ongoing tariff battle are looming over the midterm elections in Maine.

Republican Susan Collins is trying to fend off a challenge from Democrat Troy Jackson, a onetime state Senate president, and on Wednesday she made appearances with Joe Manchin, a West Virginian who became an independent late in his career before retiring.