Clinton, the Democratic National Committee, and a clean, cohesive electoral narrative would have all benefited from a Sanders withdrawal on Tuesday after losses in California and New Jersey. However, that doesn’t mean that extending his campaign another week until the D.C. primary, or even another month until the convention in Philadelphia, will hurt “party unity.” A few more Bernie rallies here and there may not be pretty, but he should be able to campaign until July without the establishment worrying about the possible effects.