Scottish Election 2021: Party leaders set to go head-to-head in Channel 4 debate - Updated: 27 Apr 2021, 15:17 Scottish Sun reporters Invalid Date, SCOTLAND'S party leaders are set to go head-to-head on Channel 4's live election debate tonight. Nicola Sturgeon (SNP), Douglas Ross (Tories), Anas Sarwar (Labour), Willie Rennie (Lib Dems) and Patrick Harvie (Greens) will be quizzed by Krishnan Guru-Murthy. Alex Salmond's Alba party has not been invited to take part. The debate, held in Glasgow, starts at 7pm and is the first to be broadcast across the UK - just two weeks before Holyrood polls open on May 6. Keep up with the latest election news here and at our Scottish Election 2021 hub.