In a way, Trump followed the exact opposite ethic of his former nemesis. Jeb Bush said that a Republican candidate should be willing to lose the Republican primary in order to win the general election. Dutifully, Bush lost the primary. Trump has done the opposite — he was willing to lose the general election to win the primary. He used every trick he had for generating free media, and whipping up the intense support of about one-third of the Republican electorate in the primary contests. It just so happens that he did this in a way that cost him the chance of ever winning over the enthusiastic support of the rest of the party apparatus, and any chance of winning a normal general election campaign.
Becoming an establishment creature now would dispirit many of Trump’s core supporters. It would wreck any momentum his candidacy had at renovating the Republican Party’s stale ideology. Trump will have worse problems than even Mitt Romney did in trying to explain the convenient evolution of his views. Trump’s unreliability extends even to his own stunts. Months ago he skipped a Fox News debate to raise $6 million for veterans. They haven’t seen the money.
Trump cannot succeed in a general election without an unforeseeable intervention from beyond our normal politics — think a sudden economic crash, a terrorist attack, or the likelihood of war. A little campaign makeover certainly won’t change what is now the most well-defined and lustily disliked campaign in modern memory. The Trump reboot will not make Trump viable. It just makes his new campaign manager viable. This is nothing more than another layer of orange-hued makeup on an orange-hued corpse of a campaign.