I hate to say this, because it sounds like a tautology but it isn't. One of the primary electoral concerns in neo-liberalism, a cornerstone of its thought, is limited government. If you are worried about a demagogue executive being too strong, the primary culprit is that your government has too much power and authority to begin with. Revert it to the people, through property rights, gun rights, the right to petition, the right to a free press, a government of enumerated powers that are concentrated at the local level, etc., etc. No one really cares about a demagogic Cub Scout leader, now do they?
Then read the rest of the Federalist Papers on how to achieve other sensible electoral reforms. It's still the best blue print out there.
In short, a government that is powerful enough to give you everything you want is strong enough to take everything away.
Here are the 7 small "r" republican principles that came out of the Constitution ratifying process, undefined but assumed in Article 4 of the Constitution:
- There is a strict separation of powers, horizontally and vertically.
- The government is run by officers governing for a term and only during good behavior.
- Offices are selected by our election, and not by the appointment of the government itself.
- The government recognizes that power resides originally in the People (immediately from God).
- There is a deliberativeness in action and that it is, by the checks and balances, not subject to the whimsical fancy of a few.
6. The government acknowledges the final right of the People to alter or abolish it whenever it usurps the rights for which it was instituted by the People to administer God’s Law.
- The government does not grant entitlements.