Here are a few examples of Republican presidential candidate Donald Trump's changing opinions on people like Hillary Clinton and President Obama over the years. (NBC)

The clip comes from today's "Meet the Press" and tells, as only video can, the story of the ideological, um, evolution of Donald J. Trump, presidential candidate. It's a remarkable four minutes that speaks to why the idea of Trump as a tea party conservative is sort of hard to believe.

As the Fix's Hunter Schwarz wrote last week in this space:

Perhaps no presidential candidate has the self-confidence he does, even in the face of some glaring flip-flops on his political positions. Where lesser candidates would dodge questions about why they've changed their mind or give a focus-group-tested line about how they evolved, Trump doesn't admit to ever having a different opinion.

He loved Hillary Clinton; now he thinks she's the worst. He was very much in favor of abortion rights before he opposed them. And he might be running as a Republican today, but he was once a registered Democrat who called for legalizing drugs, a massive one-time 14.25 percent tax on the wealthy and staying out of wars that didn't present a "direct threat" to the U.S. In many ways, he's been to the left of Clinton and even Bernie Sanders on some issues.