As a self-declared "staunch supporter" of the teaching profession and local education authorities - but opponent of selection - Mr Willis had been moderately supportive of Labour policies.

BBC: Phil Willis: Education & Employment

In addition to being an outspoken critic of the Republican Party, Morello is also a self-proclaimed socialist and a union supporter.

CNN: Ryan Rages Against the Machine

Mr Postol says that "as an American supporter of Israel's right to self-defence", he does not feel comfortable seeing the US spend money on a weapon system "that hardly works".

BBC: Israel's Iron Dome: Doubts over success rate