(CNN) Rep. Brenda Lawrence offered a highly personal rebuke of President Donald Trump for his public feud with former aide Omarosa Manigault Newman, which had reached a new level a day before when the President referred to the former White House aide as a "dog."

"And I can tell him, 'Shame on you, the fact that you are comfortable, on a national platform, to address a woman in that way, shame on you,' " the Michigan Democrat said Wednesday on CNN's "Erin Burnett OutFront."

Lawrence was referring to a tweet the President made on Tuesday about Manigault Newman, who has re-entered the spotlight after details were released ahead of the publication of her upcoming tell-all book, "Unhinged: An Insider's Account of the Trump White House."

"When you give a crazed, crying lowlife a break, and give her a job at the White House, I guess it just didn't work out. Good work by General Kelly for quickly firing that dog!" Trump tweeted.

When you give a crazed, crying lowlife a break, and give her a job at the White House, I guess it just didn't work out. Good work by General Kelly for quickly firing that dog! — Donald J. Trump (@realDonaldTrump) August 14, 2018

Lawrence, who was asked about Republicans' reactions to the President's comments, grew visibly upset as she expressed her frustration with Trump's tweets.

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