"That's my man! Your truth, dignity and grace reminds us what real leadership looks like. I am always proud of our @POTUS," the first lady tweeted just minutes after President Barack Obama left the stage, following a rousing speech that ended with a standing ovation and many DNC attendees in tears.
The tweeted ended with her initials "MO" -- indicating that she tweeted it herself.
The tweet quickly went viral, garnering more than 39,000 likes and 20,000 retweets within two hours.
On Monday, President Obama hailed his wife's speech as "incredible," spoken by an "incredible woman."