We Demand a Referendum Now's Nikki Sinclaire on Europe
A former UKIP MEP said her petition for a referendum "forced David Cameron to the Despatch Box" and that showed what a small party could do.
Nikki Sinclaire, standing for We Demand a Referendum Now in Thursday's European elections, said she would not let David Cameron renege on his promise, when she spoke to Adam Fleming on the Daily Politics.
More from the Daily and Sunday Politics: Watch full programmes from the last seven days via BBC iPlayer; 'like' us on Facebook, external page or 'follow' us on Twitter, external