Cameron EU speech: Tony Blair says PM playing 'risky game'
23 January 2013 Last updated at 16:06 GMT
Former Prime Minister Tony Blair has that said a referendum on Britain's EU membership would be a "pretty risky game".
Mr Blair said he understood David Cameron's need to push for reform in Europe, but warned against using the issue of membership as a negotiating tactic.
He added: "I think part of this speech is to driven by genuine national interest... but I feel that part of it is to do with their worries they may lose votes to the UK Independence Party."