How would you fix the Republican Party?

[Redalgo]

It depends on whether the "fix" is realistic.

Ideally, the Republican Party would be liberal in the traditional sense and have tremendous appeal to voters who like balanced budgets, realpolitik, and defend conservative values by delegating controversial issues to the individual instead of codifying their preferences using whichever tier(s) of government they happen to control at any given time. Their faith in capitalism and reluctance to change would be tempered by suspicion of supernatural claims and a trust in science.

Realistically, Republicans need to discover Christian democracy and refer resident laissez-faire types to the Libertarians.