"McCain's Death Leaves Void" ran The Wall Street Journal headline over a front-page story that began:

"The death of John McCain will leave Congress without perhaps its loudest voice in support of the robust internationalism that has defined the country's security relations since World War II."

Certainly, the passing of the senator whose life story will dominate the news until he is buried at his alma mater, the Naval Academy, on Sunday, leaves America's interventionists without their greatest champion.

No one around has the prestige or media following of McCain.

And the cause he championed, compulsive intervention in foreign quarrels to face down dictators and bring democrats to power, appears to be a cause whose time has passed. 

When 9/11 occurred, America was united in crushing the al-Qaida terrorists who perpetrated the atrocities. John McCain then backed President Bush's decision to invade Iraq in 2003, which had no role in the attacks.

During Barack Obama's presidency, he slipped into northern Syria to cheer rebels who had arisen to overthrow President Bashar Assad, an insurgency that led to a seven-year civil war and one of the great humanitarian disasters of our time.

McCain supported the expansion of NATO into Eastern Europe and the Baltic, right up to Russia's border. When Georgia invaded South Ossetia in 2008, and was expelled by the Russian army, McCain roared, "We are all Georgians now!"

He urged intervention. But Bush, his approval rating scraping bottom, had had enough of the neocon crusades for democracy.

McCain's contempt for Vladimir Putin was unconstrained. When crowds gathered in Maidan Square in Kiev to overthrow an elected pro-Russian president, McCain was there, cheering them on.

He supported sending arms to the Ukrainian army to fight pro-Russian rebels in the Donbass. He backed U.S. support for Saudi intervention in Yemen. And this war, too, proved to be a humanitarian disaster.

John McCain was a war hawk, and proud of it. But by 2006, the wars he had championed had cost the Republican Party both houses of Congress.

In 2008, when he was on the ballot, those wars helped cost him the presidency. 

By 2016, the Republican majority would turn its back on McCain and his protege, Sen. Lindsey Graham, and nominate Donald Trump, who said he would seek to get along with Russia and extricate America from the wars into which McCain had helped plunge the country.