Why shouldn't the Prime Minister visit Scotland?

<div>Boris Johnson visits Scotland today. To nobody's surprise, Nicola Sturgeon has criticised the visit coming at this moment in the pandemic; while Keir Starmer has defended the PM's right to do so as the Prime Minister of the United Kingdom. Cindy Yu talks to Katy Balls and James Forsyth about the visit and whether or not it will backfire.</div>