The S*n decided to print that Jeremy Corbyn was being vetted as a potential Czech spy which Jeremy Corbyn has, of course, been forced to deny. Why The S*n have done this is unclear, no other major outlets have picked the story up, and in many ways it is a non-story that is unlikely to change anybody’s opinion. Maybe they just don’t like him?
https://www.mirror.co.uk/news/politics/jeremy-corbyn-strongly-denies-meeting-12029216
It’s fair to say that Labour members haven’t been too bothered by this, as is evidenced in the following Labour List article
https://labourlist.org/2018/02/labour-members-react-the-sun-commie-corbyn/