 Gordon Brown visited Doncaster North during the general election campaign to support his former adviser . Miliband was elected to Parliament on 5 May 2005 , with over 50 % of the vote and a majority of 12 @,@ 656 . He made his maiden speech in the House of Commons on 23 May , responding to comments made by future Speaker John Bercow . In Tony Blair 's cabinet reshuffle in May 2006 , he was made the Parliamentary Secretary to the Cabinet Office , as Minister for the Third Sector , with responsibility for voluntary and charity organisations . 
