indyref2 should take place in 2021 if it is “safe” and claimed Boris Johnson would not block another vote.However, in an interview with the Daily Record, he declined to be drawn on the broken relationship between Sturgeon and Alex Salmond.He also refused to say whether he would campaign alongside the former SNP leader if there was a referendum.The SNP’s virtual conference starts today amid calls by senior party figures for another vote on Scotland’s constitutional future.Indyref2 will be central