 Complete the following phrase:  The group surrounding Pitt the Younger came to be the domit force in British politics from 1783 until 1830 and after Pitts death 1806 the ministers in the Portland ministry 18071809 called themselves the Friends of Mr Pitt rather than Tories. Portlands successor, Spencer Perceval Prime Minister, 18091812, never adopted the label of Tory and after 