The US justice department confirmed Attorney General Jeff Sessions met Russia's ambassador during the election campaign despite telling his confirmation hearing he had "no communications with the Russians". We hear the view of a Democratic Congressman and a former official in the George W Bush administration.
Also in the programme: The French presidential candidate, Emmanuel Macron, unveils his policy priorities; and a potential new way to treat HIV.
(Image: Attorney General Jeff Sessions at his swearing in ceremony at the White House. Credit: Win McNamee/Getty Images)