By Matt Chorley, Mailonline Political Editor Ed Miliband today claims he is like Margaret Thatcher in an extraordinary attempt to prove he is up to the job of leading his party. The Labour leader compares the Iron Lady’s grip on the challenges faced by Britain in the 1970s to his own ideas about how the country should be run. But Tory former Foreign Secretary Sir Malcolm Rifkind said Mr Miliband has as much claim to the mantle of Baroness Thatcher as 'Silvio Berlusconi had to that of Julius Caesar'. Labour leader Ed Miliband likened himself to Margaret Thatcher who he said was a conviction politician who understood the challenges Britain faced
@highlight
Labour leader hails Baroness Thatcher as a 'conviction politician' who understood the big challenges facing Britain
@highlight
He is the latest party leader to try to invoke the former Tory PM
@highlight
Sir Malcolm Rifkind says he has as much claim to the Thatcher mantle as 'Silvio Berlusconi had to that of Julius Caesar'
@highlight
Boris Johnson says David Cameron must 'put on that pineapple-coloured wig' and emulate the Iron Lady in this weeks EU budget talks
In a documentary to be broadcast tonight – called ‘What Does @placeholder Really Think?’ – the Labour leader tries to draw parallels with his own struggle to appear relevant to 21st century Britain with Baroness Thatcher’s early stages as Tory leader.