Video: Boris Johnson backs David Cameron Boris Johnson appeared to dampen down speculation about his potential to be a future Tory leader with a resounding endorsement of David Cameron's government. Speaking at a fringe event at the Conservative Party Conference on Monday night, Mr Johnson said believed the George Osborne and David Cameron were doing what was necessary for the country and that they deserved the backing on the Tory faithful. I believe that in tough circumstances he, George Osborne, the rest of the government are doing exactly what is needed for this country and to clear up the mess that Labour left. He also said the Prime Minister "could deliver" through the rest of this parliament and beyond.