Donald Trump’s hostile takeover of the Republican Party is nearly complete. I was as slow as the next guy to see in coming. But now that the fox is almost in charge of the chicken coop. I have some ideas about why it happened, and why just now. Let’s go back to the last time a billionaire decided to run for president. That was 1992, when software entrepreneur H. Ross Perot ran as an independent candidate. I was able to refresh my memory thanks mainly to a useful conference volume, Ross for Boss: The Perot Phenomenon and Beyond (SUNY Press,…