Sarah Palin's husband, Todd, filed for divorce from the former vice presidential candidate and Alaska governor citing “incompatibility of temperament between the parties such that they find it impossible to live together as husband and wife."
Todd Palin, 55, asked to dissolve the couple's 31-year marriage in a filing submitted Friday in Anchorage Superior Court.
The paperwork was submitted on Aug. 29, eight days after the couple's anniversary.
The filing, first reported by the Anchorage Daily News, only uses initials but details the couple’s marriage date and the birth date of their 11-year-old son, Trig, and asks for an equal separation of assets and debts.
The two have been married since 1988 and have five children: Track, Trig, Bristol, Willow and Piper. Todd Palin's filing asks for shared custody of Trig, who has Down Syndrome.
Sarah Palin, also 55, was elected governor of Alaska in 2006 and resigned in 2009, before the end of her four-year term. She also served as the late Sen. John McCain's running mate in the 2008 presidential election, ultimately losing the election to Barack Obama and Joe Biden.
Todd Palin, unlike his famous political wife, has largely steered clear of headlines since she burst on the national scene during 2008 presidential election cycle.
Neither Todd nor Sarah Palin could not immediately be reached by NBC News for comment.