Five candidates for the Inverclyde by-election

There will be five names on the ballot paper for the Inverclyde by-election on 30 June, reports BBC News:

• Sophie Bridger (Liberal Democrats)
• Iain McKenzie (Labour)
• Anne McLaughlin (SNP)
• Mitch Sorbie (UKIP)
• David Wilson (Conservatives)

This follows the Leicester South by-election in May, where there were also just five candidates. That could in part by explained by the simultaneous city-wide Mayoral election, which attracted the fringe candidates. But perhaps we are seeing the start of a new trend?