According to the New York Post, Allison Tripp Foley posted a now-unavailable social media message late Tuesday, that her mother was near death.
Tripp's recorded conversations, which she turned over to then-independent Counsel Ken Starr, exposed Clinton's sexual relationship with Lewinsky, who was a White House intern at the time. In exchange for the tapes, Tripp received immunity from illegal-wiretapping charges.
Tripp also told Starr about a key piece of evidence, a semen-stained navy blue dress Lewinsky said she wore during a sex act. Lewinsky had shown Tripp the dress and she encouraged her to keep it and not have it dry cleaned.
Clinton's denial of the affair led to a perjury charge when the House impeached him in 1998. The Senate acquitted Clinton of all charges in 1999.