Swinney to warn opposition of fuelling populism if Scottish budget not passed

First minister John Swinney’s Scottish National party runs a minority government. Photograph: Jane Barlow/PA

John Swinney, Scotland’s first minister, will warn opposition parties that they will fuel populist forces if they prevent his budget from being passed this month.

In a keynote speech in Edinburgh on Monday to mark the new year, Swinney will say Scottish voters would be astonished and public services damaged if MSPs fail to allow the budget to go through.