Donald Trump Jr. accused Barack Obama of plagiarizing his speech at the Republican National Convention last week, which, can you believe it, was also accused of plagiarism.

On Thursday Trump Jr. tweeted that he was "honored" POTUS plagiarized from him for his Democratic National Convention speech and questioned why no one was outraged, a reference to Melania Trump's own plagiarism snafu.

Missed opportunity to @ him for extra shade, but I digress.

The part of the speech Trump Jr. said was plagiarized? "This is not the America I know." In his DNC speech Obama said, "And that is not the America I know."

NBC News noted Obama has previously used "That's the America I know" in both a 2012 and 2016 speech.

Trump Jr.'s own speech was accused of plagiarizing from an article in The American Conservative. His name was later cleared after the writer of said article came out and said he had helped Trump Jr. with his speech.

But remember in school how you couldn't recycle an old essay you wrote in one class for another class because it'd be plagiarism? You would think the same would apply here.

As mentioned earlier Melania Trump's RNC speech last week was revealed to plagiarize Michelle Obama's 2008 DNC speech, which was all the more shocking because Melania said she wrote it herself with little help. The Trump campaign first responded by saying, "This concept that Michelle Obama invented the English language is absurd" and later a speechwriter came forward to take the blame.

Twitter quickly fact-checked Trump Jr. and took some digs at him while they were at it, save for supporters like in the first tweet seen below.

And one Hillary Clinton supporter quoted Clinton's infamous Trump clapback.

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