Jim Messina, who ran President Obama's successful 2012 reelection bid, is now in high demand in the United States and abroad. (John Gress — Reuters)

Obama's former campaign manager Jim Messina has signed on as a consultant to Britain's Conservative Party, helping them in their effort to fend off a challenge from the more liberal Labour Party in 2015.

In an e-mail, Messina said he has "long admired Prime Minister [David] Cameron," who is fiscally conservative but liberal on other issues including climate change and foreign assistance.