Obama spin doctors hired to shake up deadlocked UK vote

London - Rival parties in Britain's election campaign have hired former strategists for US President Barack Obama in an attempt to sway one of the most unpredictable elections in years ahead of polling day on 7 May.

Conservative Prime Minister David Cameron is battling to stay in power against the main opposition leader, Labour's Ed Miliband, with their parties neck and neck in polls.

Miliband has hired David Axelrod, 60, the mustachioed strategist behind Obama's "Yes We Can!" slogan, which helped sweep him to power in 2008.