Let me start by saying I've never heard of this particular blog before, and cannot vouch for it in any way...
Grades publicly released for George W. Bush at Yale (1964-1968) apparently differ from grade records for Bush stored in his residential hall on campus. The published grades are better than the grades stored in earlier records.
They go on to detail the way records were stored at Yale at the time...
According to an informed source, the “official school records at the registrar’s office were much kinder” than these other records. The key observations come from recent Yale alumni. One Yale student, offspring of an award winning educator, who graduated in 2002 with a strong undergraduate record, found out while at Yale that Bush had lived in the same residence and was not charmed by this discovery. A number of students were aware that the residences traditionally kept old grade records. This student was among those who went down to the basement, checked the older records physically and looked at them. Students discussed among themselves the disparities between some grades published for Bush and those stored in the residence hall basement. According to anecdote, some of the housed grade records had also been physically altered, with grades whited out or obscured and other grades substituted.
One key question among others would be when the records were altered. Student hearsay has it that the altering took place during the presidential term of the senior Bush, but that may be conjecture generated by stories still floating around the institution from 1998 and beyond about visits from former First Lady Barbara Bush to campus. In the words of one mother of a recent Yale alum, there was “this sense of control” about the visits. “The university was very uncomfortable,” evidently from a sense of influence if not pressure for reasons not publicly clarified. Ties between the first family and the university donor base are deep and longstanding.
Pretty short on specifics, but I press on...
As most parents know, discipline issues are not entirely separate from grade issues. One observer says, “we just honestly don’t think he [Bush] went to history class.” Bush has said he did attend, but the grade records indicate otherwise. “We don’t think he was ever there.” The cached version of the official presidential biography, from the White House web site, says that Bush graduated from Yale with a BA in history.
Okay, one more bite of unsubstantiated rumor and speculation and I'll quit...
The big question is why Bush or anyone connected to him would try altering grades, and the answer is Vietnam. John Kerry’s clumsy witticism about being stuck in Iraq is a flashback to Vietnam, when any student who flunked out was genuinely liable to be shipped out if his name was not George W. Bush. Interestingly, the Ivy League, difficult as it was to get into, was notoriously gentle about flunking out a student once admitted, including legacy students like George Walker Bush who would be expected to get the gentleman’s C in any case. At this stage, some question remains as to whether he attained even that. For family members to go so far as to pressure the institution to keep Bush inside the hedges to keep him stateside, if they did so, he must have been failing. Unfortunately, there is no inherent unlikelihood in this narrative, given the way Bush was leapfrogged over more than a hundred other applicants for the Texas Air National Guard.
Link
Make of it what you will, personally I'm inclined to believe it, but I'm also willing to believe that Ted Haggard's weekly conference calls with the White House involved getting Karl Rove his weekly methamphetamine delivery...