President Donald Trump took aim at Chelsea Manning Thursday morning after she attacked former president Barack Obama in a column published in the Guardian the day before.

Ungrateful TRAITOR Chelsea Manning, who should never have been released from prison, is now calling President Obama a weak leader. Terrible! — Donald J. Trump (@realDonaldTrump) January 26, 2017

Shortly before leaving the White House, Obama had commuted the 35-year sentence for the Army intelligence officer who leaked more than 700,000 classified documents to WikiLeaks. Manning will now be released from the military prison at Fort Leavenworth, Kan., in May.

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