GREENVILLE, SOUTH CAROLINA— Sen. Ted Cruz (R-TX) has a message for Donald Trump: Go ahead and sue me or move on with your campaign.

Cruz revealed that Trump’s lawyers have demanded his campaign pull a TV ad titled “Supreme Trust,” which highlights a clip of Donald Trump stating that he would not ban partial-birth abortions.

Trump’s lawyers argue the ad is defamatory and libelous. Cruz disagrees.

“Donald, if you want to file a lawsuit challenging this ad, claiming it’s defamation, file the lawsuit,” he said.

“His own words said on national television are a matter of public record,” the Harvard-educated Senator said. “By definition, repeating someone’s own words cannot be defamation.”

“Once again, what he said on national television is that he is very pro-choice. He would not ban partial-birth abortion, and he is pro-choice in every respect,” Cruz added.

The Texas Senator and Republican candidate for President revealed that one of Donald Trump’s attorneys had sent him a “cease and desist” letter in an attempt to silence him from speaking out about Trump’s openly-stated liberal views.

“Would President Trump ban partial-birth abortions,” the interviewer in the clip asks the New York business mogul. “Well look, I am very pro-choice,” Trump responds.

“But you would not ban it,” the interviewer asks. “No. No. I am pro-choice in every respect,” he answered.

During his press conference, Cruz displayed a poster listing all of the high-profile Democrats to whom Trump has donated to. Topping the list are Democrats Sen. Harry Reid, Sen. Chuck Schumer, Hillary Clinton, former President Jimmy Carter, and Secretary of State John Kerry,