National Review Editor Rich Lowry unloaded on Donald Trump Wednesday night, after the real estate tycoon turned to Twitter to express outrage over a critical comment he made about him on Fox News.

Appearing on "The Kelly File" earlier, Lowry said Fiorina "cut [Trump's] balls off with the precision of a surgeon" at the CNN debate.

Trump was angered by the comment and immediately fired back on Twitter.

Lowry was quick to respond, conceding that he knew his comment might strike a nerve with Trump, but arguing Trump dishes it out frequently but "REALLY, REALLY can't take it."

.@realDonaldTrump I thought the Carly cut your balls off line might bother you, but you know it's true...

— Rich Lowry (@RichLowry) September 24, 2015

.@realDonaldTrump I love how Mr. Anti-PC now wants the FCC to fine me. #pathetic

— Rich Lowry (@RichLowry) September 24, 2015

.@realDonaldTrump so it's OK for you to insult Carly's looks, but you can't handle me describing what happened to you in the debate?

— Rich Lowry (@RichLowry)

September 24, 2015

.@realDonaldTrump man, you can dish it out but you REALLY, REALLY can't take it

— Rich Lowry (@RichLowry) September 24, 2015

Lowry then proposed a deal with Trump.

.@realDonaldTrump a deal for you, Donald: if you apologize to Carly for your boorish insult, I might stop noting how she cut your b**** off

— Rich Lowry (@RichLowry) September 24, 2015

As noted by CNN's media reporter Brian Stelter, Trump's suggestion the FCC fine Lowry is a "non-starter" because the agency only fines broadcast channels.

Earlier Wednesday, Trump had said he would be boycotting Fox News. However, a network spokesperson argued in a statement that he only announced his boycott after his scheduled appearance on "The O'Reilly Factor" was canceled.

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