I think it should be fully investigated. I doubt it is possible to find out for sure unless someone has a guilty conscience since all the dirt will be buried deep. The partisans on all sides will do their best to obfuscate the matter and the majority of taxpayers will be left believing government is a sham.Most American voters are fair and honest people across party lines , they want fair and honest elections . If 30% of Democrat voters believe it was rigged , should it not be fully investigated ? Would you all be singing the same tune if the rolls were reversed ? For some reason I think not .