If you need a reminder, here is the 2010 General Election as told by Doctor Who and the Pet Shop Boys. Stars David Tennant in the role of Nick Clegg.
The tragic plot twist was that while the Doctor was busy saving us from the Cybermen, elsewhere the Daleks were massing - and we spent the next five years with the Doctor and Davros locked in a room. People always seem to gravitate to the Cybermen to save them from the Daleks or the Daleks to save them from the Cybermen: I do wish they'd try humanity instead. Ah well.