A new mayor, a former mayor and three congressional representatives walk into a restaurant.

Nope, it’s not a joke: It’s what’s going down Tuesday night before President Barack Obama’s final State of the Union address.

New Columbus Mayor Andrew Ginther, former Columbus Mayor Michael B. Coleman and U.S. Reps. Pat Tiberi, Steve Stivers and Joyce Beatty will be going out to dinner before the address, scheduled for 9 p.m. Tuesday.

Also coming with them is Col. Pete Mansoor, the chair of military history at The Ohio State University. Mansoor served as Gen. David Petraeus’ executive officer in Iraq from 2007 to 2008.

Ginther, a Democrat who became Columbus’ 53rd mayor Jan. 1, will be the guest of Tiberi, R-Genoa Township at the address (Ginther is a constituent of Tiberi's). Beatty, D-Jefferson Twp., will bring Coleman. And Stivers will bring Mansoor.

Sen. Sherrod Brown, D-Ohio, is bringing his wife, syndicated columnist Connie Schultz, according to a spokesperson.

Cincinnati resident James Obergefell - who garnered national headlines for his Supreme Court fight to have his marriage to his late husband legally recognized – will be watching with the First Lady.

The White House announced Monday that Obergefell, the named plaintiff in the Supreme Court's landmark marriage equality decision last year, will accompany First Lady Michelle Obama to the address.

Obergefell and his husband, John Arthur, were wed on an airplane tarmac in Maryland in the final days of Arthur's life. Arthur died not long after from amyotrophic lateral sclerosis, commonly known as Lou Gehrig's disease. Obergefell decided to file suit against the state after learning his name would not be on Arthur's death certificate.

Obergefell will join Jennifer Bragdon, a community college student from Austin, Texas; Mark Davis, a small business owner from Washington, D.C.; Cynthia Dias of Las Vegas, Nev., a veterans homelessness advocate, Refaai Hamo, a Syrian refugee who lives near Troy, Mich., and others.

Obergefell will also sit near one vacant seat - the White House is leaving it vacant in honor of  victims of gun violence.