Get the latest Scottish politics news sent straight to your inbox with our daily newsletterBoris Johnson has quickly caved to public anger and agreed to self-isolate after having contact with health Secretary Sajid Javid who tested covid positive on the weekend.The Prime Minister faced growing public anger on Sunday morning after officials said Johnson and chancellor Rishi Sunak would avoid self-isolating like thousands of others because Downing Street is taking part in a pilot daily testing programme.After widespread criticism the Tory leader took just two hours and 42 minutes to perform a dramatic U-turn and announce that he would be self-isolating at Chequers, the Prime Minister’s country retreat.A Downing Street spokesman said: “He was.