NEW YORK — Ex-U.S.Rep. Tom Suozzi is clearing the Democratic field in his fight to flip the Long Island House seat that was left vacant by the expulsion of scandal-tarred ex-Rep. George Santos. Former state Sen. Anna Kaplan suspended her campaign and endorsed Suozzi after he was picked by Democratic leaders to be the party’s standard bearer in the Feb. 13 special election. “We need to start .