Pro-Palestinian students have set up tent encampments at more campuses across the U.S. to protest Israel's incursion into Gaza, after mass arrests at similar demonstrations at a handful of mostly East Coast colleges in recent days. The expanding protests include plans by a coalition of Jewish groups opposing Israel's actions to close the Brooklyn street where U.S. Senate Majority Leader Chuck Schumer resides. That protest, on the second night of the week-long Jewish feast of Passover, is one of a dozen the coalition organized in cities around the country. Since Friday, hundreds of students and others were arrested at Columbia,...