Chief Supreme Court Justice John Roberts went “full MAGA” this term because he got tired of feeling lonely, one legal expert contends. Lawyer and Slate writer Dahlia Lithwick argued Monday that the conservative justice bucked his institutionalist roots and walked the party line because he wanted to hang out with the other Republicans on the court. “It’s almost like he got tired of being that fourth lone guy who would hive off and vote with the liberals,” Lithwick said. “He wants his court back, and so he’s gonna take it back by being them.” Want more breaking political news? Click for the late…