Unruly voters have elected an opportunistic showman as their presidential nominee. They were aided by infiltrators in the primary who were not even Republicans.

The nominee, Donald Trump, is a reality star billionaire real estate developer who has a history of vacillating political allegiances. He even made campaign donations to the most evil countess of the Democratic Party, Hillary Clinton, who is designed to be her party’s nominee against Mr. Trump.

Into the breach steps Speaker of the House Paul D. Ryan, the highest elected Republican in the land. He declares he is not ready — in good conscience — to support his own party’s nominee for president because Mr. Trump has not demonstrated he is a good and principled conservative.

And, once again, the Washington political punditry begins another wildly premature funeral dirge for Mr. Trump’s campaign, the Republican Party’s hold on power in Washington.