NEW You can now listen to Fox News articles! Sen. Elizabeth Warren , D-Mass., long a progressive force in New England, traveled to Maine over the weekend to boost left-wing Senate candidate Graham Platner ahead of the state’s pivotal Democratic primary.  "Graham is a combat veteran. He’s an oyster farmer, he is an organizer, and he is the person who is going to beat Susan Collins," said Warren at his campaign rally on Saturday in Portland.  At one point during the rally, Warren said Platner was her "kind of man," recalling that she first noticed him in an interview where he argued the system was "rigged" after the 2008 financial crash as no bankers were jailed. Warren is championing Platner as a "fighter" for Maine voters, drawing national attention to the candidate ahead of a showdown with two-term Democratic Gov. Janet Mills, who has the backing of Senate Majority Leader Chuck Schumer .…