By Lizzy Buchan The Tories’ candidate to be Mayor of London tried to dismiss the Partygate scandal of Boris Johnson breaking the law. As Prime Minister in 2020, Mr Johnson flouted Covid restrictions that he helped create by attending a surprise birthday do in Downing Street. Despite repeated denials that any rules were broken, he was fined by the Metropolitan Police in 2022. Susan Hall, who is challenging Labour’s Sadiq Khan to be Mayor of London, took to social media to defend Mr Johnson in 2022 and to downplay the rule-breaking that led to his ousting from Downing Street. She posted a clip o…