Massachusetts Sen. Elizabeth Warren, one of most influential leaders in the progressive movement, is being publicly and privately courted by Democrats eyeing presidential bids in 2028 — a sign they're trying to build up their lefty credentials. Why it matters: Progressives are on the rise in the party, and Warren is a key ally to have. She lost her bid for the White House in 2020 but played a major role in shaping Joe Biden's presidency by installing her allies in his administration. Her moves