Of all the moments worth mentioning from Thursday night’s Republican Party Top 10 debate, one — in my mind — stands out dramatically.

It involves Fox News moderator Chris Wallace and, you guessed it, Donald Trump.

I give Wallace great credit for seeking a specific answer to a specific allegation that Trump has leveled at Mexico’s government, which is that the Mexican government is “sending” illegal immigrants across the border, into the United States, where they are raping and murdering Americans.

Twice last night he sought some specifics from Trump, who early in the morning after the debate remains — I’m betting — the GOP frontrunner.

When he failed to provide specifics to the first question, Wallace gave him another 30 seconds to specify what proof Trump had to back up his allegation.

Trump finally said he’d “been to the border last week” and talked to Border Patrol officers who told him “that’s what is going on down there, whether you like it or not.”

So. There you have it.

Border Patrol agents told him. That means it’s true, yes?

It was an entertaining and edifying exchange between a loudmouth entertainer seeking the presidency of the United States of America and a moderator seeking some detail in one of the more outrageous allegations that has come from a candidate’s mouth.

And yet, this guy somehow is getting away with this stuff?

I’m going to stand by my belief that Trump’s candidacy likely died when he made light of Sen. John McCain’s Vietnam War record. Events such as what we heard when Chris Wallace asked him twice to provide proof of a claim that Mexico’s government is “sending” illegal immigrants into the United States only highlights Trump’s unfitness for public office.

The big question remains: When will the GOP faithful realize it, too?