With Scottish voters far more pro-European than their English counterparts, the increasing doubt over EU membership could shift the odds in favour of independence.
Both before and after the next election, Farage's party is likely to remain a significant presence.
The UKIP leader, who set up an offshore tax fund on the Isle of Man, told the European parliament that tax avoidance was about "the perception of fairness".
A bad day for UKIP as Farage's tax avoidance is exposed and the party loses its deposit in the Aberdeen Donside by-election.
After tonight, the UKIP leader will have appeared 14 times on the programme since 2009 - more than any other politician.
If there is a glimmer of hope, it is that it is the free market model embraced by the young is failing them. They could be won round.
Mercer has a majority of 16,152, but UKIP won 17.1 per cent in the county council elections.
They punch… well, they pretty much punch their weight.
"I feel like such a fool. I see now that, far from being a chaotic rabble of whingeing narcissists whose only love of Britain is for its imaginary past, it’s actually a team of visionaries with a dynamic plan to serve the common good."