By Jessica Frank-Keyes Former US president Barack Obama has met with Rishi Sunak in a “courtesy visit” to Downing Street. Obama spent around an hour inside the No10 study with the Prime Minister on Monday afternoon. The visit was understood to be mostly one on one, over cups of tea, with discussion on a range of topics including artificial intelligence (AI). He said “I’m tempted!” when asked about his opinion on the state of Russian democracy by the media as he left with the US ambassador to the UK, Jane Hartley, just after 4pm. It comes as Sunak faces intense speculation about a plot to repla…