President Trump has decided to double down and continue his crusade against a dead war hero.

Amid reports that the White House directed the Navy to keep the USS John McCain "out of sight" during Trump's visit to Japan (without Trump's knowledge), the president decided to weigh in to the press.

"I was very angry with John McCain because he killed healthcare. I was not a big fan of John McCain in any way, shape, or form. I think John McCain had a lot with getting President Bush — a lot to do with it to go into the Middle East, which was a catastrophe," Trump said en route to Colorado. "To me, John McCain, I wasn’t a fan. But I would never do a thing like that. Somebody did it because they thought I didn't like him. They were well-meaning, I will say."

Trump has a unique ability to troll his enemies into derangement. On the campaign trail, he touted Muslim bans and 2,000-mile concrete walls. But as president, he's managed to cajole Democrats into embracing literal open borders. During the early stages of the Mueller investigation, Trump called it witch hunt. But now that Democrats still want to chase uncharged and potentially nonexistent process crimes, the House has actually sort of began a witch hunt.

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But there's a problem with waging a war against someone who didn't devolve into typical Trump-driven despondency in life and now happens to be dead: That's a fight Trump cannot win.

This one-way feud is as ignominious as it is inane. McCain served more than two decades in the Navy, remained a prison of war for five years despite the Vietnamese offering him early release, and spent more than 30 years in the Senate. McCain wasn't just a Republican hero, but an American one.

When Trump finds the right enemies, he's a fighter. When he finds weak ones, he's a bully. But when he finds enemies in heroes to whom every American is forever indebted, he's pathetic.