 if Donald Trump, between 2016 and his death, is the Republican nominee in every presidential election. Otherwise, it resolves as 

*I specify Supreme Court because a lower court could theoretically have its ruling overturned, which means a NO resolution would be premature and potentially a misresolution. My assumption is that a Supreme Court ruling on the matter would be final.

Another way of thinking about this question is: will Donald Trump be the main/most powerful figure in Republican politics for the rest of his life, regardless of his age?

Please don't carry out any assassinations to influence the outcome of this market.