Our Politics newsletter is now daily. Join thousands of others and get the latest Scottish politics news sent straight to your inbox.A Northern Irish MP is in self-isolation after sitting at the same dining table as Covid scandal politician Margaret Ferrier.Democratic Unionist Jim Shannon was identified as a close contact of the Scottish MP but his party said seating arrangements included proper social distancing measures.Ferrier felt ill at the weekend, took a test, but still travelled from Glasgow to London, spoke in Parliament, received a positive result then took the train home.She has been suspended from the SNP and immediately faced calls from party leader Nicola Sturgeon to stand down as an MP.On Wednesday evening, the Commons.