One would think that the New York Times would be delighted with the results of its latest poll. Two weeks ahead of the start of the GOP debates, the Gray Lady finds that Republicans are no longer the party of President Reagan. President Trump, it reckons, has thrown the party off its Reaganite trajectory. The Times ought to be delirious. It hated the Gipper. Instead, it endorsed President Carter in 1980, calling Mr. Reagan “President Yesterday.”