House Democrat survives left-flank challenge as Bernie volunteer mounts insurgent bid
Jake Auchincloss advanced against progressive challenger Jason Poulos, who campaigned on Medicare-for-all and ending U.S. military aid to Israel.

TL;DR
- Rep. Jake Auchincloss defeated progressive challenger Jason Poulos in Massachusetts' 4th Congressional District primary.
- Poulos advocated for Medicare-for-all, ending U.S. military aid to Israel, and taxing corporate automation.
- Auchincloss, endorsed by AIPAC, has expressed criticism of Israel's conduct in Gaza regarding humanitarian conditions.
- Auchincloss previously voted to cut military financing for Israel but maintained support for the U.S.-Israel alliance.
- Auchincloss's past affiliation as a registered Republican and work on Charlie Baker's campaign were used against him by opponents.