"Kim is Hitlerian."

Conservative Commentator Ben Shapiro expressed disgust at a White House promotional video showing clips of President Donald Trump's meeting with North Korea's Supreme Leader Kim Jong Un to the score of triumphant orchestral music. 

Shapiro's Tuesday morning tweet suggested that Trump's attempt to paint the Singapore summit with Kim, in which the United States agreed to dial down its military involvement in the Korean Peninsula, as a personal victory had the effect of elevating the status of the murderous Korean dictator.

The video, published by Trump's Twitter account, was a montage of highlights from the meeting that emphasized, with sharp cuts and a swelling score, the historic nature of the summit.

A day earlier, Shapiro detailed his concerns about the president meeting the authoritarian leader of another country.

"Elevating a dictator who's enslaving millions in a giant gulag to the status of world leader doesn't seem to me like a great idea," he said Monday on his podcast, "The Ben Shapiro Show."

Shapiro, who consistently rejects isolationism and advocates a moral approach to foreign policy based on human rights (an idea the Trump administration has been flouting), has also chastised Trump and the media for hyping the Korean summit.

"The entire media treating it as a coup -- that Trump is meeting with Kim Jon Un -- I just don't understand that mentality," Shapiro said on his show"It's a coup for Kim Jong Un that he gets to meet with the president of the United States. It would be a coup for you if you got to meet the president of the United States." 

"It would not be a coup for you if you got to meet with Kim Jong Un," he added. "It would likely mean you're about to be shot."

But Trump was hardly the first American president to meet and thereby validate a reigning dictator. The Washington Post even published a comprehensive list of such occasions, for readers

For example, Herbert Hoover, a few years after the end of his presidency in 1938, declared that the United States should not get involved in European conflicts -- despite the Nazi's “disregard for both life and justice” -- after meeting with German leader Adolf Hitler at the Reich Chancellery.

Presidents Lyndon B. Johnson, Gerald Ford, and Ronald Reagan all backed Indonesia's murderous president Suharto, who reigned over a massacre of Indonesian progressives.