Question: Which English-American journalist and former British MP launched Heat Street?

full_context: Document 1: Eliot Higgins: Eliot Higgins (born 1979), who previously used the pseudonym Brown Moses, is a British citizen journalist and blogger, known for using open sources and social media to investigate the Syrian Civil War, 2014–15 Russian military intervention in Ukraine and the downing of Malaysia Airlines Flight 17. He first gained mainstream media attention by identifying weapons in uploaded videos from the Syrian conflict.
Document 2: Mandy Stadtmiller: Mandy Stadtmiller (born October 24, 1975) is the author of "Unwifeable: A Memoir", an autobiography published by Gallery Publishing Group of Simon & Schuster. She is the "Unwifeable" columnist for New York Magazine, editor-at-large of xoJane, "Girl Talk" columnist for Penthouse and host of the comedy podcast "News Whore." She is also known for her dating column in the "New York Post", called “About Last Night.” Her other "Post"-published exploits include a visit to Nevada’s first male prostitute and a controversial "Cheat Sheet".
Document 3: Laura Kuenssberg: Laura Juliet Kuenssberg (born 1976) is a Scottish journalist. In July 2015, she was appointed as the political editor of BBC News, the first woman to hold the position, in succession to Nick Robinson.
Document 4: Barbara Follett (politician): Daphne Barbara Follett ( Hubbard; born 25 December 1942) is a British Labour Party politician who served as the Member of Parliament (MP) for Stevenage from 1997 until 2010. During this time she held several parliamentary and ministerial positions. In the decade before entering Parliament she played a major part in transformation of the Labour Party, firstly by making members more aware of their visual impact on voters and secondly by co-founding and running two organisations, Labour Women's Network and Emily's List UK, which spearheaded reforms that helped Labour to return a record 101 women to Parliament in 1997. Following the United Kingdom Parliamentary expenses scandal, she repaid more than £32,000 which she had claimed in expenses. She stood down in 2010 in order to take over the running of her husband, bestselling author Ken Follett's, growing business.
Document 5: Louise Mensch: Louise Daphne Mensch ("née" Bagshawe; born 28 June 1971) is an English-American journalist and former British MP. After a period working public relations for the music industry in the early 1990s, she became known, as Louise Bagshawe, as a writer of "chick-lit" novels. She was elected Conservative MP for Corby in the 2010 UK general election, but resigned from Parliament in August 2012 to move to New York City to live with her second husband, American music manager Peter Mensch. In 2014, she began working for News Corporation, and co-launched its "Heat Street" website in February 2016. Since leaving "Heat Street" in mid-December 2016, she has published primarily on her blog "Patribotics", which she launched in January 2017, and her Twitter account. She left News Corp entirely in March 2017. Mensch, as well as her website "Heat Street", has published multiple unverified claims, and promoted hoaxes and conspiracy theories about the Trump administration and its ties to the Russian Federation.
Document 6: Verrit: The website's slogan says it is "media for the 65.8 million," referring to the number of votes Hillary Clinton won in the 2016 presidential election. Daou, an adviser to Clinton's 2008 presidential campaign, and prior chief executive of Shareblue told "Business Insider" that he intended the website to "reflect the worldview" of those who voted for Clinton and described the site as an "online hub for Clinton backers so that they can find easy-to-share facts, stats and other information you can take out to social media when you’re having debates on key issues people are discussing". Daou also said the website had no financial ties to Clinton.
Document 7: Sarra Manning: Sarra Manning is a writer from England. She attended the University of Sussex and took up an English with Media Studies degree. She became a freelance writer after submitting her work to "Melody Maker". She worked as the entertainment editor for five years of the now-defunct teen magazine "J-17". Manning was the editor of "Elle Girl" (UK edition), then re-launched "What To Wear" magazine for the BBC and has worked on UK magazines such as "Bliss" and "The Face". She's contributed to "ELLE", "Seventeen", "The Guardian" and "Details" and is a contributing editor to "ELLE UK" and writes regularly for "Grazia", "Red" and "Stella", as well as consulting for a number of British magazine publishers. She has been dubbed the "teen queen extraordinaire" following the release of her hit teen fiction book "Guitar Girl", and the popular "Diary of a Crush" trilogy. Her first adult novel, "Unsticky" was published by Headline in 2009. Her next teen novel, "Nobody's Girl" was published in 2010, and a second adult novel, "You Don't Have to Say You Love Me", was published in February 2011. Her third adult novel, titled "Nine Uses for an Ex-Boyfriend", was published in February 2012.
Document 8: MSNBC: MSNBC (formerly stylized as msnbc) is an American news cable and satellite television network that provides news coverage and political commentary from NBC News on current events. MSNBC is owned by the NBCUniversal News Group, a unit of the NBCUniversal Television Group division of NBCUniversal, all of which are owned by Comcast. MSNBC and its website were both founded in 1996 as a partnership between Microsoft and General Electric's NBC unit, hence the network's naming. Although they shared the same name, msnbc.com and MSNBC maintained separate corporate structures and news operations, with msnbc.com headquartered on the West Coast on the Microsoft campus in Redmond, Washington, and MSNBC in the NBC headquarters in New York. Microsoft divested its stake in the MSNBC channel in 2005, and divested its stake in msnbc.com in July 2012. The general news site was rebranded as NBCNews.com and a new msnbc.com was created as the online home of the cable news channel.
Document 9: Newsmax: Newsmax, or Newsmax.com, previously styled NewsMax, is an American news and opinion website founded by Christopher Ruddy and operated by Newsmax Media. The website is divided into four main sections: Newsmax, Newsmax Health, Newsmax Finance, and Newsmax World, each divided into various subsections. Newsmax Media also operates a print magazine called Newsmax as well as the cable news channel Newsmax TV.
Document 10: Heat Street: Heat Street was a news, opinion and commentary website based in the United States and United Kingdom. The website was launched in April 2016 by U.S.-based British writer and former politician Louise Mensch. It was owned by News Corp under Dow Jones & Company and featured sections on politics, technology, culture, business, entertainment, and life. News Corporation announced that the site would shut down on August 4, 2017, to become part of MarketWatch.
Document 11: The Hotline: The Hotline is a daily political briefing published, alongside "National Journal", by Atlantic Media from its headquarters at The Watergate complex in Washington, D.C.. It is currently edited by Scott Bland. "The Hotline" was founded by Doug Bailey and Roger Craver in 1987, and published independently until its acquisition in 1996 by National Journal Group, now a subsidiary of Atlantic Media.
Document 12: News UK: News Corp UK & Ireland Limited (trading as News UK, formerly News International and NI Group), is a British-based American-owned newspaper publisher, and a wholly owned subsidiary of the American mass media conglomerate News Corp. It is the current publisher of "The Times", "The Sunday Times" and "The Sun" newspapers and its former publications include the "Today", "News of the World" and "The London Paper" newspapers. Until June 2002, it was called News International plc. On 31 May 2011 the company name was changed from News International Limited to NI Group Limited, and on 26 June 2013 to News UK.
Document 13: John Edwards extramarital affair: John Edwards is a former United States Senator from North Carolina and a Democratic Party vice-presidential and presidential candidate who admitted to an extramarital affair in August 2008. The affair was initially reported in late-2007 by "The National Enquirer" (a U.S. supermarket tabloid newspaper), but was given little attention outside the tabloid press and political blogosphere. The "Enquirer" cited claims from an anonymous source that Edwards had engaged in an affair with Rielle Hunter, a filmmaker hired to work for his presidential campaign, and that Hunter had a child from the relationship. ABC News reported that Andrew Young, a member of Edwards' campaign team, stated that Edwards asked him to "Get a doctor to fake the DNA results ... and to steal a diaper from the baby so he could secretly do a DNA test to find out if this [was] indeed his child."
Document 14: Dial M for Murdoch: Dial M for Murdoch: News Corporation and the Corruption of Britain is a 2012 book written by the British Labour Party MP Tom Watson, and Martin Hickman, a journalist with "The Independent" newspaper. Published in the United Kingdom on 19 April 2012 by Allen Lane, an imprint of Penguin Books the book deals with the relationship between newspapers belonging to Rupert Murdoch's News International and senior British politicians and police officers, and how the company allegedly used its political influence to mask illegal newsgathering techniques at its London headquarters.
Document 15: Slate (magazine): Slate is an online magazine that covers current affairs, politics, and culture in the United States from a liberal perspective. It was created in 1996 by former "New Republic" editor Michael Kinsley, initially under the ownership of Microsoft as part of MSN. On December 21, 2004, it was purchased by The Washington Post Company, later renamed the Graham Holdings Company. Since June 4, 2008, "Slate" has been managed by The Slate Group, an online publishing entity created by the Graham Holdings Company to develop and manage web-only magazines. "Slate" is based in New York City, with an additional office in Washington, D.C.
ground_truth: Louise Mensch