Republican presidential candidate Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE is threatening to skip CNN's town hall interview Tuesday night over the network's treatment of him.

"Wow, @CNN has nothing but my opponents on their shows," he wrote on Twitter. "Really one-sided and unfair reporting. Maybe I shouldn't do their town-hall tonight!"

Wow, @CNN has nothing but my opponents on their shows. Really one-sided and unfair reporting. Maybe I shouldn't do their town-hall tonight! — Donald J. Trump (@realDonaldTrump) March 29, 2016

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Trump and presidential rivals Sen. Ted Cruz Rafael (Ted) Edward CruzSenate Republicans face tough decision on replacing Ginsburg Cruz: Trump should nominate a Supreme Court justice next week Renewed focus on Trump's Supreme Court list after Ginsburg's death MORE (Texas) and Gov. John Kasich (Ohio) are scheduled to be interviewed by the network in Wisconsin, one week before the state's primary.

Trump has repeatedly threatened during his campaign to skip big events — and he's followed through at times.

The businessman pulled out of two Fox News debates this year, one earlier in March and another in January right before the Iowa caucuses.

CNN's Tuesday morning lineup included an interview with former Wisconsin Gov. Tommy Thompson (R), a Kasich supporter, as well as an interview with Trump spokeswoman Katrina Pierson.

CNN host Don Lemon referred to Pierson as "very disingenuous" during that interview for her defense of Trump's controversial tweets about Cruz's wife.