WASHINGTON — Democrats are buzzing about powerful party-linked attorney Marc Elias springing a mandatory arbitration clause on employees of his law firm — with insiders speculating about whether the firm has something to hide and accusing Elias of hypocritically limiting worker rights. New York native Elias, 55, made headlines with his work on Hillary Clinton’s procurement of a dossier full of salacious gossip about then-Republican presidential candidate Donald Trump in 2016 — and his eponymous law firm, which he founded in 2021 and has dozens of employees, works primarily on behalf of Democrats and progressive causes. The Elias Law Group’s...