There was a weird role reversal at the heart of the Liberal Democrat decisions over tuition fees in 2010, as Chris Butler's academic research reveals. So I invited him on Never Mind The Bar Charts to discuss what he has found, the lessons for the Liberal Democrats and the implications more generally about what makes for successful political parties.

• Chris Butler's research: When are governing parties more likely to respond to public opinion? The strange case of the Liberal Democrats and tuition fees.

• Follow the show on Twitter.