From our Reviews both on the Sex Listings and the Escort site, there's definitely some men married to women who patronize adult bookstores, bathhouses, bars, etc. or who use cruising venues. Whether this is
AGAIN, a continuing thing throughout a marriage, or a new exploration I don't know.
Beyond those reviews, there are regular news reports of scandals or brouhahas involving male politicians married to women who have male lovers, who are arrested in compromising positions, or who are using apps such as Grindr, Scruff, etc. The most prominent of these I can recall in recent years were
former New Jersey Democratic Governor Jim McGreevey as well as the well publicized case of
former Idaho Republican Senator Larry Craig. McGreevey is now divorced and has a male partner, obtained a Master's of Divinity, and now works counseling inmates and ex-offenders. Craig is still married to his wife but appears to have disappeared from public life.
There's also cases of unmarried male politicians involved in gay scandals or rumors, but those aren't specifically relevant to your question.
For those without scandals, in the most recent years, Democratic LGBT politicians have generally in most of the US been as open about their personal lives as straight politicians. Republican LBGT politicians tend to keep it hidden until after they leave office or whatever prominent position. For my non-partisan city council in suburban Houston, an openly gay man was elected to three consecutive terms in office, only forced out by term limits. Gay issues were not part of his campaigns but everyone knew publicly he was gay and had a partner who is now his husband.
In a separate venue, there was the scandal of
Pastor Ted Haggard, head of a Colorado Springs megachurch and former head of the National Association of Evangelicals. He was accused by a male escort of having sex and using crystal meth together. Haggard initially denied but later admitted to buying meth; he denied the sexual contact and parts of the story were not proved factual or unfactual. Haggard lost his job and leadership positions, went through counseling, and remains married. Later allegations from other men were revealed a few years later.
Inasmuch as similar scandals keep popping up at national, state, and local levels involving conservatives and evangelicals -
Joe.My.God publicizes most of them, and he is quite political; every couple months another Republican politician seems to pop up on a hookup app - I tend to think there's a good number of ordinary non-prominent men married to women who are indeed having sex with men in some place or situation. However, trying to quantify this doesn't seem likely to produce a reliable result.
~ Bob S.