This isn't an international marriage. It's a marriage between former Louisiana governor Edwin Edwards and his third wife, Trina. The couple met after Trina wrote to him in prison, where he was serving a long sentence for accepting bribes while in office. Here's a brief blurb from his wikipedia page:
On July 29, 2011, Edwards married 32-year-old Trina Grimes Scott, originally from Baton Rouge, at the Monteleone Hotel in New Orleans. A prison pen pal, she is fifty-one years his junior and was born during his second term as governor.
Edwin and Trina Edwards were the subjects of the reality show The Governor's Wife, which premiered October 27, 2013, on the Arts & Entertainment Network. The program focuses on Trina's rearing of teenaged sons and acting as stepmother to Edwards' daughters who are almost twice her age. According to the A&E description of the program: "Between school projects, running for president of the Homeowner's Association, fending off skeptics who think she's a gold digger, and thoughts of adding a baby of their own to the mix, the Edwards clan truly represents a new take on the modern family." The couple announced February 15, 2013 that Trina was pregnant. Trina gave birth to their son, Eli Wallace Edwards, on August 1, 2013
There's a photo of the couple and their child here:
http://www.politico.com/story/2014/04/edwin-edwards-louisiana-2014-elections-105563.html?hp=t1Edwin Edwards' political career is an exhibit in the case against democracy. His primary skill is charm and the ability to talk people into supporting him. I suppose that's pretty much how he managed to land a wife who is 51 years younger than he is.
He was reported to brag in the midst of one of his campaigns that, “The only way I can lose this election is if I’m caught in bed with either a dead girl or a live boy.”
http://onpolitics.usatoday.com/2014/03/17/edwin-edwards-congress-comebacks-louisiana-racketeering/