Real estate mogul Donald Trump has one -- and perhaps only one -- criticism of GOP presidential candidate Rick Santorum and he's going to stick to it.
After blasting Santorum on Wednesday morning for his crushing failure in a 2006 reelection bid for Pennsylvania Senate -- and then repeating that same attack in a YouTube video -- Trump recycled the jab again in an interview with Fox News' Greta Van Susteren.
"I have nothing against Rick Santorum, he seems like a nice guy," Trump told Van Susteren. "He ran for the Senate -- he was a sitting senator, he ran again for the Senate as an incumbent -- lost by 19 points, it was a record in the history of the U.S. Senate for an incumbent. He lost and now he wants to run for president."
Santorum lost to Democrat Bob Casey in catastrophic year for congressional Republicans, a point that Van Susteren later noted, explaining that 2006 had been especially disastrous for conservative Pennsylvania lawmakers.
Trump then went on to repeat an analogy that he used on at least three occasions Wednesday, comparing Santorum to a "student who gets thrown out of high school for bad marks but then wants to go to the Wharton School of Finance," a prestigious business school at the University of Pennsylvania.
"Somebody beat him by tremendous numbers and all of the sudden he says he wants to be president? Give me a break!" Trump continued.
(Video above via Fox News. Comments begin at the 1:50 mark)
Santorum shocked Trump's candidate, Mitt Romney, on Tuesday, taking wins in all three of the night's contests: non-binding caucuses in Minnesota and Colorado, as well as a symbolic primary in Missouri.
While Trump has since come out with his best broken-record bashing of Santorum, the punches haven't always been one-sided.
In the wake of Trump's endorsement drama before last week's Nevada caucus, which Santorum unsurprisingly lost, the former Pennsylvania senator was asked if it was hypocritical for Trump to have endorsed Romney after criticizing him in August. Santorum reportedly responded with some degree of sarcasm.
"I can't imagine Donald Trump being hypocritical," Santorum said. "That would be totally out of character for Donald Trump."