Tony Blair was last night accused of helping to secure a plum job for Alastair Campbell's firm on a 'dictator's payroll'. The claim was made after US Government documents revealed the extent of links between the former Prime Minister and the lobbying company that employs his former spin doctor. According to US Justice Department papers, the authoritarian Kazakhstan regime in central Asia is represented in the US 'through Windrush Ventures Limited, through Portland PR Limited'.