Kaplan University

The trial was set for April 25, but attorney Joseph Tacopina contends that the former president's right to a fair trial depends on a “cooling off” period.

U.S. District Judge Lewis A. Kaplan said the former president used “frivolous” legal challenges to delay Carroll's defamation lawsuit, including claiming that the state court lacked jurisdiction over him.

Carrolll, who is suing the former president for defamation, said Tuesday that deposing Trump would cause unnecessary delays -- but still seeks a DNA sample.