Eliminate or revamp the Primary process in elections

Whereas it has become common knowledge that the Primary process was perverted in the state of Missouri in 2012, wherein the Democrat Party spent an estimated 1.5 million dollars to ensure the nomination of the weakest candidate, Todd Akin to run against the incumbent, and whereas similar actions took place across the country where members of the Democrat party crossed party lines in individual state primaries to ensure the weakest candidate was nominated to run against the incumbent, it is apparent that the primary system is inherently flawed, unfair, and subject to manipulation wherein the voice of the people is effectively silenced.
Wherefore, it is requested that the Primary system across the country be eliminated and replaced with a system to ensure fairness and proper representation.