Gary Gibbon: Tony Blair – help or hindrance to Labour?

Tony Blair has caused a stir by leaping into the election battle with a message of “100 per cent support” for Ed Miliband.

The intervention of Labour’s most successful election-winner was welcomed by party strategists, but Conservatives mocked it as a sign of  Mr Miliband’s “weakness”, while Ukip said they were pleased Mr Blair had drawn attention to their core message on Europe.

So is his intervention, and his warning about the dangers of an EU referendum under the Conservatives, a help or hindrance to Labour? Our political Editor Gary Gibbon reports: