Pittsburgh billionaire Richard Mellon Scaife earned himself a prime spot in Hillary Clinton’s “vast right-wing conspiracy” during the ’90s by pumping tons of money into the investigations of Bill’s extramarital activities (among other conservative causes). Now he seems to have been doing some tomcatting of his own. A few years back his wife — Margaret Ritchie Rhea Battle Scaife, AKA Ritchie — hired a private dick to follow him, and according to the latest issue of Vanity Fair:

In December of 2005, the private detective proved Ritchie’s fears to have been well founded: he took pictures showing the reclusive 75-year-old billionaire with a woman named Tammy Vasco, a tall, blonde 43-year-old whose criminal history includes two arrests for prostitution. The pair was photographed at Doug’s Motel, a roadside establishment near Pittsburgh, where rooms rent for $49 a night, or $31 for three hours.

Doug’s Motel? Gotta love it. And a week after Ritchie found out, guess what Scaife did? He kicked her out of the house and called the cops on her for trespassing! She sneaked back around on foot to the dining-room window to try to catch him with Vasco on her cellphone camera, set off the security system, and got dragged away by the cops:

The 60-year-old socialite spent that night — three days before Christmas — in a holding cell at the Allegheny County Jail, where her fellow prisoners passed the time by petting the fur collar of her coat.

VF has the whole sordid story, which The Washington Post teased back in October. Ritchie’s getting over $1 million a month from him, so maybe that’s worth the humiliation. Me, I’d want at least $1.5 mil…