Donald Trump capped a week that found him flirting with fascism by sharing a blatantly false, racist graphic that apparently originated with a Hitler-admiring neo-Nazi.

The Republican presidential frontrunner tweeted an image Sunday afternoon that claimed 81 percent of white homicide victims are killed by blacks and 97 percent of black homicide victims were killed by other blacks.

The graphic cited the Crime Statistics Bureau in San Francisco as its source -- although that does not exist and the statistics are, quite simply, made up.

In reality, the FBI shows that 82 percent of white homicide victims were killed by other white people and 15 percent of white homicide victims were killed by black people, and 91 percent of black homicide victims were killed by other black people.

So where did the image and the bogus statistics come from?

Blogger Charles Johnson, of Little Green Footballs, was unable to determine its source through a Google Image search or -- but he was able to find the earliest tweet using the graphic.

The account's avatar is a modified swastika used as the symbol of the neo-Nazi German Faith Movement, and the account profile expresses admiration for Adolf Hitler: "A detester of any kind of sick perverted dildo waving marxism and liberalism,we Should have listened to the Austrian chap with the little moustache."

The image was posted on the conservative Sexy Patriot account shortly before Trump shared it.

There's no indication Trump was aware the graphic seems to have originated with a neo-Nazi, but a quick Google search should have revealed the statistics as inaccurate -- and its racist suggestions are plainly obvious.

Trump supporters beat up a Black Lives Matter protester Saturday in Birmingham, Alabama, and the GOP candidate said afterward that the man was “so obnoxious and so loud” that “maybe he should have been roughed up.”

The Republican repeated his call to closely monitor or even close down U.S. mosques to fight terrorism, and he refused to rule out creating a database of American Muslims and expressed openness to the possibility of requiring them to carry special ID.

This isn't the first time Trump has tweeted Nazi propaganda on his official social media account.

Trump shared a campaign graphic, which he later deleted, that included an image of Nazi soldiers taken from a World War II re-enactment.