UK Prime Minister Boris Johnson faces momentous challenges. The coronavirus pandemic, an economic slump and a looming moment of truth for Britain's relations with the EU. In the midst of this turbulence the future of the United Kingdom itself looks uncertain. Polls suggest increasing numbers of Scots want out of the Union. HARDtalk's Stephen Sackur speaks to the new leader of the Scottish Conservative party, Douglas Ross. Are events playing into the hands of the Scottish nationalists?
