At the husting at the University of Warwick on 20 May, Brown was heckled regarding the 2003 War in Iraq. He replied by saying that although there had been mistakes, it had been the right thing to do. Candidates for the Deputy Leadership election were asked which factors they considered important to the next General Election. Jon Cruddas named the issue of insecurity at work; Hilary Benn said that more housing was needed; Peter Hain described inequality as "the biggest challenge we face as a government"; Alan Johnson focused on social mobility; Hazel Blears mentioned education and employment opportunities; Harriet Harman said that Labour needed to "win back the trust and the confidence of the British people" and emphasised the importance of policy implementation. Blears, Harman and Benn all focused on the importance of party unity.