One wonders how the president is going to react now that the Gallup Poll has asked men which woman they would most like to spend an evening with and the answer was Nancy Reagan. She was the top choice of married men and men between the ages of 25 and 34. And she beat out such sex symbols as Vanna White and Cybill Shepherd.

In the poll commissioned by the magazine Fast Lane, Heather Locklear came in second, with Shepherd and Lynda Carter tying for third. The remainder of the list, in order, included Raquel Welch, Margaret Thatcher, Victoria Principal, Whitney Houston and, tied for ninth place, Loni Anderson and White. As for the first lady's appeal, the magazine says, "Mrs. Reagan projects a sophisticated charm and basic magnetism that men, particularly young men, are uncontrollably drawn to. Because of her proximity to the central apparatus of government she can make them feel important, while her femininity turns them on." Who would have guessed? The president better keep his eyes open. Out and About

Media notes: Political columnists Jack Germond and Jules Witcover, who wrote presidential campaign books for 1980 and 1984, are going to do it again for 1988. The columnist team has reportedly reached a six-figure deal with Warner Books for an as-yet-untitled 1988 campaign book aimed for spring 1989 publication. Since this presidential campaign promises to be more interesting than the 1984 race, Germond and Witcover probably won't have a repeat of the title of that book, "Wake Me When It's Over" ...

Among the celebrities at the Belmont Stakes Saturday watching Bet Twice keep Alysheba from winning the Triple Crown were band leader Cab Calloway, actor Rex Harrison, oddsmaker Jimmy (The Greek) Snyder and actor Jack Klugman, who often says he works so he can play the horses ...

Comedian Dick Smothers, 48, and former Washington debutante Lorraine M. Martin, 28, had a baby yesterday. Martin gave birth to a daughter, Sarah Alexander, at Humana Sunrise Hospital in Las Vegas, where Smothers is working. The couple, who were married in McLean in September, have homes in Middleburg and Palm Beach, Fla., and a winery in Sonoma, Calif. ...

If Ronald Reagan could make it to the White House and Clint Eastwood could become mayor of Carmel, Calif., maybe there is a future for former rock singer Sonny Bono. He wants to be the next mayor of Palm Springs, Calif., where he owns a pasta restaurant. Bono, the former husband of singer Cher, said incumbent Mayor Frank Bogert is against development and belongs to a "good-ol'-boy network." Bogert counters that Bono wears funny shirts and lacks experience. Now here's a campaign someone should write a book about ...

Now that Jesse Jackson is the front-runner for the Democratic presidential nomination, his wife Jackie has sent a message to reporters covering her husband that she doesn't want them looking into their private life. Jackson spends only a few days a month at home in Chicago with his wife and family, but she told Life magazine that "I don't believe in examining sheets. That's a violation of privacy. If my husband has committed adultery, he better not tell me. And you better not go digging into it because I'm trying to raise a family and won't let you be the one to destroy my family" ...