Barack Obama will retire a happy man. He is now close to destroying his political enemies — the Republican Party, the American conservative movement and the public-policy legacy of Ronald Reagan.
Today, the last men standing amidst the debris of the Republican presidential competition are Donald Trump, a political independent who is using the Republican Party like an Uber car; Ted Cruz, who used the Republican Party as a footstool; and John Kasich, a remnant of the Reagan revolution, who is being told by Republicans to quit.
History may quibble, but this death-spiral began with Barack Obama’s health-care summit at Blair House on Feb. 25, 2010. For a day, Republicans gave detailed policy critiques of the proposed Affordable Care Act. When it was over, the Democrats, including Mr. Obama, said they had heard nothing new.