Twitter shade thrown.

Hillary Clinton had a message for Donald Trump after he took to Twitter to sound off on the news that President Barack Obama had endorsed Clinton.

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"Obama just endorsed Crooked Hillary," Trump tweeted on Thursday. "He wants four more years of Obama—but nobody else does!"

Clinton's Twitter account fired back, "Delete your account."

The exchange came shortly after Clinton's campaign released a YouTube video announcing Obama's endorsement of the presumptive Democratic nominee.

“I want those of you who’ve been with me from the beginning of this incredible journey to be the first to know that I’m with her, I am fired up and I cannot wait to get out there and campaign for Hillary," he said.