Voters across Maine, Nevada, South Carolina and North Dakota head to the polls Tuesday for another day of primary elections in America, but much of the political world will be focused on Maine's high-stakes U.S. Senate contest.
Any indication of tepid support for Graham Platner, a Democratic candidate for Senate in Maine, will be seen as a warning sign about his chances against Senator Susan Collins, the Republican incumbent.
Graham Platner, a Democratic candidate for Senate in Maine who is seeking to challenge Senator Susan Collins in the fall, has been mired in scandals in recent weeks.