If you’re a reactionary, you have probably spent a good chunk of your life screaming about the size of the federal government and making a case for states’ rights. But now that you have used base mobilization, gerrymandering, and the Electoral College to win power in Washington, you are going to find that kind of rhetoric embarrassing, because the locus of opposition to your regime is in the blue states, which represent more than half of the national population and wealth. How can you effectively force them to become red states without looking like a complete hypocrite?
The best way would be to manufacture some sort of “emergency” that you can use as a pretext to send in troops to serve as an occupation force. If you don’t have the nerve to do that, you will have to rely on legislative carrots and sticks to persuade the blue state electorate to give up their liberal ideas. The limitation on the SALT deduction in the Trump tax cut can serve as a template for you. Draconian restrictions on voting would also help.
It will be a long, grinding process, but if you can manipulate the system to stay in power for a decade or so, it could be done.