Throughout his congressional campaign in 1974, Gingrich was having an affair with a young volunteer. An aide who worked with Gingrich throughout the 1970s stated that “it was common knowledge that Newt was involved with other women during his marriage to Jackie.”
…
In September 1980, according to friends who knew them both, Newt visited Jackie in the hospital the day after she had undergone surgery to treat her uterine cancer; once there, Newt began talking about the terms of their divorce, at which point Jackie threw him out of the room

In 1993, while still married to Marianne, Gingrich began an affair with House of Representatives staffer Callista Bisek, more than two decades his junior.[278] Gingrich was having this affair even as he led the impeachment of Bill Clinton for perjury related to Clinton’s own extramarital affair.[279][128] Gingrich filed for divorce from Marianne in 1999, a few months after she had been diagnosed with multiple sclerosis.

Sauce: https://en.m.wikipedia.org/wiki/Newt_Gingrich

My stepmother was doing her undergrad (and a few years later her law degree) from the University of West Georgia when he was a professor of history there and had started his first congressional campaign. She said literally every woman in school was aware of his affairs with students.

Moral decay in 2024? This is just yet another year of accusations fueled by projection from the right.