Democratic Party Factions

Arizona Sen. Ruben Gallego, a Democrat and potential 2028 presidential contender, has endorsed Maine Democrat Graham Platner in his primary bid to challenge Republican Sen. Susan Collins, adding to a growing split in the party over who should take on the five‑term incumbent. Gallego praised Platner, a 41‑year‑old oyster farmer and combat veteran, as an independent‑minded 'fighter' for working families, even as Platner continues to face controversy over past social‑media posts and a tattoo he recently covered up because it resembled a Nazi symbol. Platner is already backed by Sen. Bernie Sanders and Sen. Martin Heinrich, while Senate Minority Leader Chuck Schumer is supporting Maine Gov. Janet Mills, 78, setting up an establishment‑versus‑insurgent clash in a race Democrats view as critical to flipping the Senate. Democrats need to net four seats to retake the majority and are targeting Maine along with North Carolina, Alaska and Ohio. The endorsement underscores emerging ideological and generational fault lines inside the party over how aggressively to oppose Trump’s Iran war and other policies, with Platner positioning himself as an anti‑establishment, economic‑equality candidate despite his baggage.