Donald Trump Did NOT Fare Well in the Debate, Not in Self Control, but Especially Not the Fact Checks

There were a number of fact check failures for Trump, most notably that he was wrong on ISIS controlling oil in Libya, he was wrong on blaming Obama for the way we left Iraq, and he was especially wrong about Clinton and her campaign starting birtherism.
From CBS.com fact checking:

TRUMP STATEMENT:  ISIS has “oil all over the place, including the oil, a lot of the oil, in Libya.”
FACT CHECK: According to a Bloomberg analysis, Libyan oil fields and pipelines are controlled by a combination of the Government of National Accord, allies of the Tripoli Petroleum Facilities Guard, and the Libyan National Army (and groups aligned with them).
Claudia Gazzini, a Tripoli-based senior analyst at the International Crisis Group, told the Washington Post that it was simply not true that the Islamic State has control of any Libyan oil.
“While it is true that ISIS has attacked oil fields in the Sirte basin area and destroyed key equipment there, they have not sought to keep control of the oil fields,” Gazzini said.

and

Patti Solis Doyle, Clinton’s 2008 campaign manager, told Wolf Blitzer a volunteer forwarded an email promoting “birtherism” and that that person was fired. “The campaign nor Hillary did not start the ‘birther’ movement, period, end of story,” Solis Doyle told CNN, saying the volunteer’s actions were “beyond the pale” and that Clinton called Obama campaign manager David Plouffe to apologize.

Blumenthal, a longtime Clinton confidante but not a current campaign staffer, denies ever contacting McClatchy; the former McClatchy bureau chief, James Asher, recently said he clearly recalled the conversation with Blumenthal.

What CBS either omitted or did not know is that James Asher no longer is making the claim of recalling the Blumenthal conversation, and that the investigatory mission to Kenya by McClatchy news was the result of multiple stories being published at the time.
Trump fat out LIED when he claimed he only filed for bankruptcy four times -- which is a LOT of bankruptcies.  Four bankruptcies argues being very bad at business. It was not four it was six bankruptcies. 
Again per CBS and politifact (because it is important to multisource):

FACT CHECK: Clinton is correct. When Politifact looked into this issue, they found six times that Trump has filed for Chapter 11 bankruptcy protection: The Trump Taj Mahal in 1991; Trump Castle in 1992; Trump Plaza and Casino in 1992; the Plaza Hotel in 1992; Trump Hotels and Casinos Resorts in 2004; and Trump Entertainment Resorts in 2009.

I think my greatest outrage is that Trump believes he is in some way more presidential APPEARING than Clinton. Ms. Clinton was elegantly groomed and very presentable. Trump in contrast, has demanded that his appearance NOT be an issue, while he has repeatedly demeaned his women opponents from Carly Fiorina to Clinton, and has demeaned women more broadly, including those in his employ. Women are not qualified or unqualified from office on the basis of appearance. But if we were going to assess ability on the basis of appearance, Trump is a fat, jowly, puffy-eyed, badly spray-tanned smirking swine with an unattractive piece of roadkill on his head, like a tacky version of a Daniel Boone hat. He is in no position to criticize anyone's appearance, other than he clearly believes this view of women as sexual objects and male accessories, sometimes called the demeaning term eye candy, is the exclusive prerogative of men.
The hypocrisy in this, the obscene double standard, is that Trump behaved badly, interrupting Clinton repeatedly - in the first 26 minutes of the debate, Trump interrupted Hillary 25 times, per Vox.
Huff Po referred to this an manterupting:

Manterrupting, defined by journalist and author Feminist Fight Club Jessica Bennett as “unnecessary interruption of a woman by a man,” is a phenomenon that many professional women are (unfortunately) familiar with.
A 2014 study found that women are significantly more likely to be interrupted than men are, and research has shown that when women do speak up, their words are given less weight and treated as less valid than men’s. This phenomenon is especially problematic in fields ― like politics ― which are dominated by men’s voices just by virtue of the numbers.
Women who want to circumvent these professional obstacles have to learn to play the game, and part of that game means dealing with the frustrating habits of one’s male colleagues ― or in the case of a presidential race, one’s political opponents. As Clinton well knows, in order to avoid having her words dismissed, she has to modulate the way she presents her ideas in a way that male candidates simply don’t.
To Clinton’s credit, she appeared unperturbed by Trump’s attempts to verbally bulldoze over her. Each and every time, she kept speaking, often with a sly smile. Because as any professional woman knows, the best way to shut down a manterrupter is to simply refuse to acknowledge him.

Although to be fair, Trump also talked over the moderator, and Hillary Clinton in the second half of the debate did interrupt Trump a few times as well, 17 total to Trump interrupting her 51 times.
I hope this was not a drinking game exercise for the good folks over at Vox.

Counting the interruptions of both candidates by moderator Lester Holt, Clinton was interrupted a total of 70 times, and Trump was interrupted 47 times. Some of Trump’s interruptions of Clinton featured outright lies, like insisting that he never said climate change was a Chinese conspiracy, or denying that he ever said some of the offensive things about women that Clinton called him out on saying. Some of his interruptions were petulant asides; at one point he even threw in a one-word, schoolboy-like “Not.”

Other interruptions turned into loud, insistent filibusters, with Trump barreling over Clinton until she finally smiled and relented to let him keep talking — or until Holt interjected to insist that Trump give Clinton her allotted two minutes to talk.

If anything renders someone "unpresidential" it would be this Trump failure to control his mouth and his toxic attitudes of special entitlement towards others.