As part of the run-up to the local elections, David Cameron made a particularly nasty speech about immigration
Cameron's speech served a number of purposes. It reassured the Tory party's right wing and drew a dividing line with the Liberal Democrats - which also gave Nick Clegg something he could object to and so help to appease his dwindling voters. It also played the race card just as the cuts are really starting to bite and face growing opposition.
Cameron spent a considerable amount of time "de-toxifying" the Tory brand, trying to turn the image of the "nasty" party into one of caring conservatives. The re-toxification of the Tories is proceeding rapidly.