Not sure of his motivation. Doesn't seem overly patriotic or have a concern about helping his fellow citizens. In fact his primary concern has always seemed to be for his own well being. Like Trump, he thinks he can run a country like a business, and not even full-time at that.

 Best thing that could happen to the Liberals is that Kevin gets the nod from Harper Party. I suspect it would then devolve into a bar fight that would result in its inevitable split.