U.S. Rep. Max Rose of Staten Island announced his endorsement of Michael Bloomberg’s presidential bid, making Mr. Rose the first member of Congress to back the former New York City mayor’s campaign. Mr. Rose, a Democrat, specifically cited Mr. Bloomberg’s management of the city in the wake of the Sept. 11, 2001, terrorist attacks. Mr. Bloomberg was elected to the first of his three terms as mayor that year. “Mayor Bloomberg’s even-keeled and visionary leadership is what we need to reduce the chaos, partisanship and hyper-vitriol that has overtaken Washington,” Mr. Rose said. “Rather than submit to another stage of...