We don’t know what it is yet, but it will probably be a little thing that brings down Trump. A little thing that spirals out of control.

Under the intense spotlight of a general election, something will emerge that Trump can’t spin away. Something he can’t sweep under the rug. Something he can’t distract from by bullying other Republican candidates.

At some point, a little lie, a seemingly innocuous issue, a passing word, a casual slip, will trigger a bigger story, which will spark an even bigger one, which will do serious damage.

We’re seeing our first example with Trump’s ridiculous denial that he was his own fake publicist:

The Washington Post has published quarter-century-old audio of an interview with someone claiming to be a Donald Trump PR flack named John Miller, but who sounds a lot like Trump himself. On Friday morning’s Today Show, Trump was confronted with a clip from that audio, and not only denied it was him, but lashed out at hosts Matt Lauer and Savannah Guthrie for even bringing it up.

The voice on the recording is so obviously Trump’s that it doesn’t take a forensic audio expert to prove it. But CNN went ahead and checked with one anyway:

CNN’s Wolf Blitzer confronted Trump spokeswoman Katrina Pierson, who echoed Trump’s denial. Blitzer was on point, saying it’s the lie today, not the fact of the old recording, that is so problematic.

In recent days, we’re seeing signs that our national media are capable of subjecting Trump to a modicum of scrutiny. Even if it’s one tenth what Hillary Clinton gets on a daily basis, Trump isn’t prepared to handle it.

(AP Photo/Mary Altaffer)