"The Cosby Show" actor's widow, Dr. Tenisha Delilah Warner, is taking legal action against his mother, Pamela Warner.
Trump had resumed defamatory attacks against Carroll as his lawyers considered asking the high court to reconsider its decision.
Lawsuit alleges a 23-month-old suffered a traumatic brain injury at California child care center.
The complaint alleges that Jason Pulliam and another tenant became trapped inside the building's laundry room and were unable to get out.
The U.S. Supreme Court this week, with no dissents, declined to hear President Donald Trump's appeal of the verdict and judgment.
The Supreme Court sided with the maker of Roundup weedkiller Thursday in a ruling expected to block thousands of lawsuits alleging it failed to warn people the product could cause cancer.