(CNN) President Donald Trump's son Eric Trump accused conservative lawyer George Conway, husband to White House counselor Kellyanne Conway, of showing "utter disrespect" to her work with his frequent criticism of the President.

"Of all the ugliness in politics, the utter disrespect George Conway shows toward his wife, her career, place of work, and everything she has fought SO hard to achieve, might top them all," Eric Trump tweeted Monday evening. "@KellyannePolls is great person and frankly his actions are horrible."

George Conway did not immediately return CNN's request for comment.

He has been an increasingly strident Trump antagonist, especially on Twitter or in op-eds, but has focused his ire at the President or the administration more generally.

Last month, Conway stressed that he was proud of his wife, who stepped in to help lead the last months of Trump's campaign, and said that she was the key reason Trump was elected.

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