The NDP has criticized Kenney for handing out the earplugs and for his United Conservatives offering three different explanations as to why.

Alberta's earplug debate got louder Monday as the Opposition NDP accused Premier Jason Kenney of lying and sought to have Government House Leader Jason Nixon found in contempt of the legislature.

Alberta Premier Jason Kenney is under scrutiny for handing out earplugs during debate in the legislature late Wednesday night.