Indeed, it is doubtful that his trade union backers would allow him to do so. (conservativehome.blogs.com)
Nearly $ 17 million was spent by candidates and outside groups divided between union backers and education reformers and charter school supporters. (laschoolreport.com)
Labour leader Ed Miliband is in a stand - off with the party's biggest union backer over the selection of candidates for the next election. (bbc.com)