Mika Brzezinski, Joe Scarborough (Credit: MSNBC) WATCH: Morning Joe panel declares Trump's "treasonous" remarks about Obama should "disqualify him from running for president" Trump accused a sitting president of being complicit in the murder of Americans — of committing a "treasonous act"

On MSNBC's Morning Joe Tuesday, the panel discussed what they characterized as presumptive Republican nominee Donald Trump's "treasonous" remarks about President Barack Obama.

Co-host Joe Scarborough opened the segment by mocking Trump's decision to revoke The Washington Post's press credentials, comparing it to the Pope banning the Bible from church or Major League Baseball banning baseball bats from baseball stadiums.

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He further noted that Trump made "a suggestion on a couple of channels" -- referring to his appearances on both the TODAY show and Fox & Friends -- that the president "was somehow implicated in these terror attacks, and then said, 'Well, I'll let people just try to figure out what I said.'"

Scarborough remarked that it reminded him of "when so many scumbags said President George W. Bush had something to do with 9/11 -- but that was on the Internet. To have the standard-bearer -- Paul Ryan's candidate, Mitch McConnell's candidate, the Republican Party's candidate -- say that Barack Obama may have been complicit in the killings of America is beyond breathtaking."

Panelist Mike Barnicle agreed, saying that "what he said, on all those channels yesterday morning, is basically a disqualifier to be president of the United States. He accused the sitting president of the United States of a treasonous act."

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Scarborough later noted, again, that Trump deliberately made these remarks on multiple networks before "doing what he always does" -- refusing to clarify them later in the day, allowing the conspiracy theorists to "run with the dog-whistles."

Watch the entire conversation below via MSNBC.