Platner wins Maine primary, setting up face-off with longtime Senator Collins

Voters also headed to the polls in primary elections in Nevada, North Dakota, and South Carolina ahead of the midterms.

Graham Platner, a Marine combat veteran with a controversial background, has secured the Democratic nomination for the U.S. Senate race in Maine, setting up a high-stakes general election against incumbent Republican Senator Susan Collins.

Graham Platner has clinched the Democratic nomination for the U.S. Senate race in Maine, setting up a high-stakes general election battle against Republican incumbent Susan Collins.

Democrat Graham Platner has secured the Democratic nomination for U.S. Senate in Maine, setting up a critical general election challenge against incumbent Republican Senator Susan Collins.

Graham Platner drew an enthusiastic crowd at a Portland, Maine town hall on Sunday as he attempts to stabilize his Senate campaign amid recent controversies.

Democrat Graham Platner and GOP Sen. Susan Collins will face off in November, after Platner won his primary on Tuesday night, CBS News projects.

Graham Platner is seeking to make a Democratic nomination for U.S. Senate official in advance of one of the most anticipated contests of the year.

Graham Platner, a Marine veteran, oyster farmer and progressive activist, has scaled a mountain of personal controversies to win the Democratic nomination for the US Senate in Maine.

Progressive oyster farmer Graham Platner, whose insurgent U.S. Senate campaign has weathered scandals and ended Gov. Janet Mills’ political career, will face Republican U.S. Sen. Susan Collins in November after winning his Tuesday primary.