I don’t think any of that matters...she’ll just inherit her husband’s electorate
One needs to be careful with straight line extrapolations. Everything is always in flux and everyone is always thinking. There is no way she is ready for prime time in 4 short years. In eight years, after Trump’s second term, the political environment could be completely different.
Ex: I was a leftist who didn’t vote in the 1980 election, but I assumed Carter would win. I woke up the next morning and my first reaction was “This is the counter-revolution.” Well, it was. My business took off like a rocket under Reagan. I voted straight R from then on, becoming more and more conservative as I watched the left ruin our country one institution at a time.
Now, having been betrayed by the GOPe, I am voting Trump to stop them all, all the elites, globalists and assorted malign utopian idiots. Trump is running on the Republican line, but he isn’t a Republican.
None of us knows what parties will exist in what format in 4-8 years, where the populace will be in terms of what issues or what black swans will emerge in the form of individuals or events.
One step at a time. No reason to assume inevitability of anything/anyone that far out.