Prime Minister Gordon Brown shakes hands with Labour Party workers and office staff, after he arrived at a local Labour office in London, Tuesday June 2, 2009, to view progress in the campaign for local and European elections on June 4. Brown faces a battle to retain his political authority as the curent lawmakers' expenses scandal sweeps through his Cabinet, with Home Secretary Jacqui Smith ereportedly ready to quit over her mistaken claims for porn movies, while the future of Chancellor Alistair Darling and a host of other government stalwarts remains in doubt.(AP Photo/John Stillwell, pool)