The president's eldest son, whose Twitter feed can at times be as inflammatory as his father's, was a one-man rapid-response team as the fired FBI director testified before a Senate panel Thursday.
He delivered denunciations with the same force that made him an effective, if controversial, campaign surrogate and could signal his own political ambitions.
Donald Trump Jr tweeted more than 80 times Thursday, defending his father and attacking Comey.
Trump Jr's Twitter barrage was all the more striking when compared to his father's silence, which the president broke with a yesterday morning tweet accusing Comey of lying under oath.
Also Read
Trump Jr has certainly been willing to go on the attack for his father before.
He crisscrossed the United States during last year's election, doing hundreds of interviews on Fox News and local conservative outlets. He attacked "Crooked Hillary," his father's derogatory nickname for opponent Hillary Clinton, and delivered a well-received speech at the Republican National Convention.
That moment sparked speculation about his political future. But while Trump Jr told The Associated Press this spring that he would not, as had been rumored, be a candidate for governor of New York, he left the door open for a political run down the road.
He's done a number of Republican campaign events since then, including fundraisers in Texas and Indiana and campaigning for a congressional candidate in Montana.
But Trump Jr, who along with his brother Eric is running their father's former company, has said he does not discuss the details of politics or their business with the president.
He outpaced the national Republican Party with his Twitter defense Thursday. In particular, he seized on Comey's assertion that he interpreted the president's statement that he "hoped" the FBI would drop its probe into former National Security Adviser Michael Flynn as an instruction.
Disclaimer: No Business Standard Journalist was involved in creation of this content