Via CCP comes word of what looks to be an interesting new AEI book, Better Parties, Better Government by Peter Wallison and Joel Gora. 

The most effective way to change this pro-incumbent system is to lift the restrictions on political parties, allowing them to become both the principal vehicles for political fundraising and the principal sources of campaign funds for their candidates. This would improve funding resources for challengers, strengthen the parties, reduce the appearance of corruption inherent in the current candidate-centered fundraising system, and ultimately strengthen American democracy.