Remember this? The above letter—download Donald Trump's doctor's letter here—is the only information we have about the health of the man who would be the oldest person ever sworn in as president.

As Newsweek pointed out recently, there are a bunch of problems with this letter.

It purports to be a medical letter, but it is one of the most ridiculous documents ever to emerge in any political campaign. First, the letterhead is in the same font as the letter, which appears to have been created using Microsoft Word. The signature from the doctor is several inches past the signature line—the result you might get if the document had been signed as a blank and filled in later.

There is that big typo up top ("To Whom My Concern"), there is the gmail address in the letterhead ("Usually, doctors’ letters released publicly do not include email addresses, in order to avoid HIPAA violations," according to the Clinton campaign's assessment of the letter), and something's wrong with the URL, as Newsweek learned the hard way:

If you follow the URL (haroldbornsteinmd.com), sometimes it takes you to cdn.freefarcy.com, a blank page that asks if you want to upload an update to a Flash program onto your computer (the domain name, freefarcy.com, is still for sale. No, I can’t explain that.) If you decline, it does so anyway and, based on the response of the security system on my computer, the “program” on the doctor’s supposed website is a virus.

Substantively, the letter is also full of problems. As Newsweek points out, it never explains why Trump has "been seeing a gastroenterologist for over 35 years," it says his lab results are "extraordinarily excellent" (not a medical term), and

it says that his medical examination of Trump has “only positive results.” In medical terms, if the test is positive, it confirms the existence of disease. Is this doctor saying Trump has every medical ailment that could be found in examination? Does he not know the meaning of the word? Or, as I suspect, was the letter written by someone in the Trump campaign?

Last night, Rachel Maddow called this "a story that will not quit and honestly is getting worse over time, not better."

That Newsweek analysis was published two weeks ago, but last night Maddow aired a bunch of footage of the doctor in question being questioned about all this (including the "only positive results" line), and it turns out that the circumstances under which the doctor says he composed the letter also do not add up.

Watch—start around the 1:00 mark:

It's almost like he didn't write it or something! He insists he wrote it. And so does his wife.

Meanwhile, just yesterday, the Daily Beast published new reporting about this doctor, and it is not good. The first sentence is: "Penning Donald Trump’s enthusiastic clean bill of health in five minutes may have been one of Dr. Harold Bornstein’s least consequential mistakes."

The article goes on to detail several malpractice claims against Dr. Bornstein, all of which he denies. Two of them involve the deaths of patients. In 2002, for example, he reportedly "paid $86,250 to the husband of a former patient to settle a lawsuit alleging that Bornstein overmedicated his wife with powerful, unneeded prescriptions, which contributed to her addiction—and ultimately her death."

But in that case there was "no finding of liability against Dr. Bornstein." The Daily Beast adds:

Malpractice suits aren’t uncommon among medical professionals, of course. But questions about the professionalism of Dr. Bornstein have been raised since the gastroenterologist released a hyperbolic statement of health for the Republican presidential candidate in December.