Question: Who co-wrote a song with an American singer, produces and politician with a wife named Cher?

full_context: Document 1: Baby Don't Go: "Baby Don't Go" is a song written by Sonny Bono and recorded by Sonny & Cher. It was first released on Reprise Records in 1964 and was a minor regional hit. Then following the duo's big success with "I Got You Babe" in the summer of 1965, "Baby Don't Go" was re-released by Reprise later that year and became another huge hit for Sonny & Cher, reaching the top ten in the U.S. and doing well in the UK and elsewhere, going as far as reaching number one in Canada.
Document 2: I Got You Babe: "I Got You Babe" is a song written by Sonny Bono. It was the first single taken from the debut studio album "Look at Us", of the American pop music duo Sonny & Cher. In August 1965, their single spent three weeks at number 1 on the "Billboard" Hot 100 in the United States where it sold more than 1 million copies and was certified Gold. It also reached number 1 in the United Kingdom and Canada. In 1985, a cover version of "I Got You Babe" by British reggae/pop band UB40 featuring American singer Chrissie Hynde, peaked at number one in the UK Singles Chart and reached number 28 on the US "Billboard" Hot 100 chart. A 1993 version by Cher with Beavis and Butt-Head bubbled under the Hot 100 chart.
Document 3: The Sonny Side of Chér: The Sonny Side of Chér is the second studio album by American singer-actress Cher, released on April, 1966 by Imperial, as her second album, Cher again collaborated with Sonny Bono and Harold Battiste. The album is by-and-large a covers album and contains two songs written by Bono. The title of the album is a pun on the name of Cher's first husband Sonny Bono. After its release, the album garnered positive reviews from critics. The album was Cher's second successful album of the sixties.
Document 4: Needles and Pins (song): "Needles and Pins" is a song written by Jack Nitzsche and Sonny Bono. In his autobiography, Bono states that he sang along with Nitzsche's guitar-playing, thus creating both the tune and the lyrics, being guided by the chord progressions. Jackie DeShannon tells the story differently, that the song was written at the piano, and that she was a full participant in the song's creation, along with Nitzsche and Bono, although she didn't get formal credit.
Document 5: Bad to Me: "Bad to Me" is a song credited to Lennon–McCartney. In late interviews, John Lennon said that he wrote it for Billy J. Kramer with The Dakotas while on holiday in Spain. However, in a 1964 interview he said that he and Paul McCartney wrote it in the back of a van, so Paul contributed to it. Billy J. Kramer with The Dakotas released their recording of the song in 1963 and it became their first number 1 in the UK Singles Chart. Paul McCartney was present during the recording session at Abbey Road Studios. The single would be released in the US the following year, and become a top-ten hit there, reaching number 9. It became one of the first occasions a Lennon–McCartney composition made the US Top 40 recorded by an artist other than the Beatles (the first being "A World Without Love" by Peter & Gordon; another being "Goodbye" by Mary Hopkin).
Document 6: Mojo Pin: "Mojo Pin" is the first song on Jeff Buckley's 1994 album "Grace". It was written by Jeff Buckley and Gary Lucas, and was first introduced on his EP, "Live at Sin-é". Buckley stated that the song was about a dream of a black woman. Through a wash of bizarre images, the lyrics convey a feeling of addiction, either to drugs or a person. In Jeff's words, "Sometimes if somebody you feel you need... the whole universe tells you that you have to have her, you start watching her favorite TV shows all night, you start buying her the things she needs, you start drinking her drinks, you start smoking her bad cigarettes, you start picking up her nuances in her voice, you sleep in safe sometimes the most dangerous thing... this is called Mojo Pin." (Astoria, London, UK, 18/01/95)
Document 7: Bang Bang (My Baby Shot Me Down): "Bang Bang (My Baby Shot Me Down)" is the second single by American singer-actress Cher from her second album, "The Sonny Side of Chér". Written by her then-husband Sonny Bono and released in 1966, the song reached No. 3 in the UK Singles Chart and No. 2 on the "Billboard" Hot 100 for a single week (behind "(You're My) Soul and Inspiration" by The Righteous Brothers), eventually becoming one of Cher's biggest-selling singles of the 1960s.
Document 8: Jackie DeShannon: Jackie DeShannon (born August 21, 1941/1944) is an American singer-songwriter with a string of hit song credits from the 1960s onwards, as both singer and composer. She was one of the first female singer-songwriters of the rock 'n' roll period. She is best known as the singer of "What the World Needs Now Is Love" and "Put a Little Love in Your Heart", and as the composer of "When You Walk in the Room" and "Bette Davis Eyes", which were hits for The Searchers and Kim Carnes, respectively. DeShannon is currently an entertainment broadcast correspondent reporting Beatles band members' news for the radio program "Breakfast with the Beatles".
Document 9: Bittersweet White Light: Bittersweet White Light is the ninth studio album by American singer Cher. The album was released in April 1973 by MCA. It was the last solo Cher album to be produced by then-performing partner and husband Sonny Bono. While many fans consider the album to be her best vocal performance, "Bittersweet White Light", composed mostly of covers of American pop standards, was Cher's first commercial failure of the 1970s. It was Cher's first record released only by MCA, both in the UK and the US.
Document 10: The Needle and the Damage Done: "The Needle and the Damage Done" is a song by Neil Young that describes the destruction caused by the heroin addiction of musicians he knew. Though not specifically about him, the song was inspired by the heroin addiction of his friend and Crazy Horse bandmate Danny Whitten. It previews the theme of the "Tonight's the Night" album that reflects Young's grief over the heroin overdose and death of both Whitten and Bruce Berry, a roadie for Young and Crazy Horse.
Document 11: Sonny Bono: Salvatore Phillip "Sonny" Bono ( ; February 16, 1935 – January 5, 1998) was an American singer, producer, and politician who came to fame in partnership with his second wife Cher, as the popular singing duo Sonny & Cher. He was mayor of Palm Springs, California from 1988 to 1992, and congressman for California's 44th district from 1995 until his death in 1998.
Document 12: Mike Needle: Needle’s songwriting debut 'What A Feeling' from One Direction’s album 'Made in the A.M.' was co-written with Jamie Scott, Dan Bryer and 1D band members Louis Tomlinson and Liam Payne. This track topped Rolling Stone's 'Readers' Poll' as the best track One Direction have ever released. He has recently worked with Niall Horan co-writing Horan’s debut solo single ‘This Town’.
Document 13: Sonny James: James Hugh Loden (May 1, 1928February 22, 2016), known professionally as Sonny James, was an American country music singer and songwriter best known for his 1957 hit, "Young Love". Dubbed the "Southern Gentleman" for his congenial manner, his greatest success came from ballads about the trials of love. James had 72 country and pop charted releases from 1953 to 1983, including an unprecedented five-year streak of 16 straight Billboard #1 singles among his 26 #1 hits. Twenty-one of his albums reached the country top ten from 1964 to 1976. James was given a star on the Hollywood Walk of Fame in 1961 and co-hosted the first Country Music Association Awards Show in 1967. He was inducted into the Country Music Hall of Fame in 2007.
Document 14: Laugh at Me: "Laugh at Me" was Sonny Bono's only hit song as a solo artist under the name Sonny. The song was released in 1965 and reached #1 in Canada on the "RPM" national singles chart (to be knocked off the top spot the following week his own Sonny & Cher single, "Baby Don't Go"). It peaked at #10 in the U.S. and at #9 in the United Kingdom. Thus, Sonny hit the Top 10 in all three countries as a solo artist before Cher. The song was written and produced by Bono after he was refused entrance to Montoni's Restaurant in Hollywood because of his "hippie attire". The song begins with Sonny saying, "I never thought I'd cut a record by myself but I got somethin' I wanna say. I want to say it for Cher and I hope I say it for a lot of people."
Document 15: Lucy in the Sky with Diamonds: "Lucy in the Sky with Diamonds" is a song credited to Lennon–McCartney that appears on the Beatles' 1967 album "Sgt. Pepper's Lonely Hearts Club Band". It was started by John Lennon, then Paul McCartney contributed to it in a songwriting session. Lennon's son Julian inspired the song with a nursery school drawing he called "Lucy—in the sky with diamonds". Shortly after the song's release, speculation arose that the first letter of each of the title nouns intentionally spelled "LSD". Lennon consistently denied this, insisting the song's fantastical imagery was inspired by Lewis Carroll's "Alice in Wonderland" books, a claim repeatedly confirmed by Paul McCartney.
ground_truth: Jack Nitzsche