 Pre-campaign Talk about the referendum began in 2014 when then stated that he would continue his promise to hold a European Union withdrawal referendum if elected again last year as Prime Minister.
<clarity>  Pre-campaign Talk about the referendum began in 2014 when then stated that he would continue his promise to hold a European Union withdrawal referendum if elected again last year as Prime Minister.
 Talk about the referendum began in 2014 when then stated that he would continue his promise to hold a European Union withdrawal referendum if elected again last year as Prime Minister.