Omar and Lee join protest outside of United Center, while AOC calls to offer support CHICAGO—Several members of the left-wing "Squad," including Rep. Ilhan Omar (D., Minn.), joined uncommitted Democratic National Convention delegates who staged a sit-in outside the United Center over the party's denial of their request for a speaking slot. Omar and Rep. Summer Lee (D., Pa.) sat with the delegates near the north entrance to the United Center, where vice presidential nominee Tim Walz spoke...