The current political parties do not have to use the election results to choose the Presidential Candidates. They attempted to do this to President Trump in 16. George will lobbied for this (Who is George Will you ask, exactly) If we are going to create a new political party, and don't want to end up with a coalition Government like Europe, we need to create a party to replace the Republican party and force what's left into the Democrat party. We need to create a political party so great, both parties will loose so many members (Voters) that an opposition party forms that has the same values, that will drive the political narrative so far to the right, the threat of evil will have no place in politics.
We also need to set a platform that members that run for office will propose and vote for a set of policies that will seal the Republic for eternity; term limits, etc. This will take a leader such as Trump to implement between now and the 2022 elections. It has to be ready to primary the midterms.
Now there will be those who say stay with the Republican party and change from within. The parties are designed around centralized control. Those who push that have their own self interest in mind, and the rest need to be educated why.
I think this will be a great endeavor for President Trump to kick of his second term. I see a gathering in Philadelphia where Freedom was almost exterminated (In your face) this 4th of July for its creation, and one hell of a party afterwards. God Bless Patriots.
As a side note, I feel like I will be having an onset of depression on Jan 21, it will be at that point everyone will know what we know, and we will no longer be the sole holders of special knowledge. (Sarcasm)