The House has endorsed a resolution that's not likely to put either President Bush or Russian President Vladimir Putin in a good mood before their weekend meeting.
The resolution suggests Putin's government might have had a hand in the poisoning death of Russian dissident Alexander Litvinenko two years ago. It asks Bush and Secretary of State Condoleezza Rice to press Russian officials to cooperate with British investigators.
Litvinenko, a former KGB agent, had been living in Britain. Authorities there have said they will try to prosecute Russian businessman Andrei Lugovoi in his death. Britain expelled four Russian diplomats last year because of the Kremlin's refusal to extradite Lugovoi.
Bush and Putin are scheduled to meet in Russia this weekend. White House officials have been expressing hope that the two might reach a deal on U.S. plans to put a missile defense system in Europe.