Close to 16 million viewers tuned in Wednesday to hear Michael Cohen testify before the U.S. House Committee on Oversight and Reform, and there's no question it made for riveting television.

Among the highlights: Cohen, President Donald Trump's convicted, disbarred former lawyer and fixer, making a not-so-veiled reference to Rudolph Giuliani as “Mr. Trump's TV lawyer.”

Giuliani, who has been a personal lawyer and public bulldog for the president for nearly a year, responded to the barb in a series of text messages to The National Law Journal, suggesting Cohen will spend more time in prison as a result of his testimony, and taking aim at Cohen's counsel, Lanny Davis.

“I've tried more cases and argued more appeals than he and his lawyer combined and multiplied by 10,” wrote the former New York City mayor, a former U.S. attorney for the Southern District of New York and associate U.S. attorney general.

“Look how poorly prepared he was for questioning. He read political diatribes rather than a carefully crafted set of compelling facts and arguments,” Giuliani continued.

Davis, former special counsel to President Bill Clinton and a partner at law firm Davis Goldberg & Galper and public relations firm Trident DMG, did not immediately respond to a request for comment.

Giuliani also pointed in a text to Cohen's testimony about seeking a job in the Trump administration and about his foreign contacts. “In all my years of trying cases, I never saw a witness in a high stakes case walk into so much provable perjury,” he wrote.

Congressmen Jim Jordan, R-Ohio, the Oversight Committee's ranking Republican, and Mark Meadows, R-North Carolina, referred Cohen's testimony for alleged perjury and false statements to the U.S. Justice Department on Thursday. A Justice Department spokeswoman said the department received the referrals and was reviewing the matter.

Giuliani, meanwhile, predicted that “at least 5 witnesses” will soon come forward to provide evidence of Cohen's additional crimes. Giuliani gave no clues about who the witnesses would be or their relationship to Cohen and Trump.

In addition to Davis, Cohen had assistance preparing for this week's hearing from Michael Monico of Chicago's Monico & Spevack, who was seated behind Cohen at the hearing along with Davis and his Trident co-founder, PR specialist Eleanor McManus.