SNP targets Scotland’s most marginal seat as it seeks pro-independence majority

It is the most marginal seat in Scotland, where at the last election Labour hung on with a wafer-thin majority.

This time around, Dumbarton is being fiercely contested, and it’s a key target for the Scottish National Party, who are hoping to build a commanding pro-independence majority in Holyrood this May.

We have been to Dumbarton to talk to the candidates