31 years is a long run.
Sarah Palin's husband files for divorce to end 31-year marriage, cites 'incompatibility of temperament'
Todd Palin has filed for divorce from Sarah Palin, the former governor of Alaska and GOP vice presidential candidate, citing “incompatibility of temperament.” The filing, submitted Friday in Anchorage Superior Court and first reported by the Anchorage Daily News, uses only initials but details the couple’s marriage date and the birth date of their 11-year-old son, Trig.
more:
http://www.nbcnews.com/politics/politics-news/sarah-palin-s-husband-todd-files-divorce-over-incompatibility-temperament-n1051636?cid=eml_nbn_20190909