PM congratulates Davy Russell but Reform also performed strongly, gaining third place with 26% of the voteScottish Labour win pivotal Holyrood byelectionHere is an analysis of the significance of the Hamilton byelection result from Severin Carrell, the Guardian’s Scotland editor.And here is an extract.Some voters have been visited four times by Labour canvassers and politicians: Labour MPs and MSPs flooded the constituency – in part because the UK party, from Keir Starmer downwards, knew they could not afford further humiliation at the hands of Reform.It seemed in the final days of the campaign that Reform’s “air war” was seriously wounding