If you just ignore the opinion polls, Humza Yousaf’s first 100 days as First Minister have been an unqualified disaster. Yousaf eked across the finishing line after an internal election drenched in ruthless skullduggery and bitter factionalism. In the aftermath, he alienated and exiled his party rivals and turned the SNP backbenches from a North Korean military parade into a Holyrood remake of House of Cards.