Rep. James R. Langevin has endorsed Sen. Hillary Rodham Clinton’s campaign for the Democratic presidential nomination, while his House colleague Patrick J. Kennedy is sticking with his choice of Sen. (and fellow Providence College alum) Christopher Dodd, of Connecticut.

Neither of Rhode Island’s U.S. senators — Democrats Jack Reed and Sheldon Whitehouse — has indicated which candidate will garner his support. According to their aides, neither is close to announcing a favorite.

Reed may have an especially tough decision, since several longtime colleagues — Senators Dodd; Clinton, of New York; Joseph Biden, of Delaware; and Barack Obama, of Illinois — are seeking the Democratic nomination.

Clinton’s husband, former President Bill Clinton, arrives tomorrow at former Providence Mayor Joseph R. Paolino’s East Side home for a fundraising lunch for his wife’s presidential effort.