Veteran British socialist Jeremy Corbyn called for his new political party to “come together” as he opened its inaugural conference Saturday, as it seeks to move on from a messy launch and become a viable left-wing challenger to Labour, which ejected him last year over a series of antisemitism scandals. As British politics fractures into a multi-party system and UK Prime Minister Keir Starmer takes Labour rightward on some issues, Corbyn’s outfit, including many who have expressed a fierce anti-Israel stance, hopes to fill a gap on the left. “We’re here today to do something dramatic…to found a new Democratic...