Maine incumbents have retained their fundraising advantages months ahead of November federal races.
Republican U.S. Rep. Bruce Poliquin reported Sunday a war chest of $2.6 million through June, while Democratic U.S. Rep. Chellie Pingree reported about $685,000 on hand.
Independent U.S. Sen. Angus King reported $2.4 million in cash through late May.
Democratic Assistant Leader Jared Golden has raised $1.1 million to unseat Poliquin.
King's challenger Republican state Sen. Eric Brakey has raised nearly $379,000. Democratic U.S. Senate candidate Zak Ringelstein reports raising $52,000 and loaning himself $137,000.
Independent state Rep. Martin Grohman has reported raising $162,000 to challenge Pingree since April, including $110,000 from himself. Fellow Pingree challenger Republican Mark Holbrook reports $64,500 in contributions.
Maine will make history this November when voters rank candidates to determine federal officeholders.