Question: The former chairman of the 2016 Hillary Clinton presidential campaign worked on what team for Barack Obama?

Context paragraphs:
John Podesta: John David Podesta (born January 8, 1949) is a columnist and former chairman of the 2016 Hillary Clinton presidential campaign.  He previously served as chief of staff to President Bill Clinton and Counselor to President Barack Obama.

Hillary 1984: Hillary 1984 is the title of the viral video that combines the footage of the 2008 presidential campaign web announcement by Hillary Clinton with the 1984 Super Bowl commercial by Apple Inc. for the launch of Macintosh.  The video shows the same blond female athlete from the 1984 Super Bowl commercial updated with an iPod.  The Big Brother image that she throws the sledgehammer at is replaced with Hillary Clinton announcing that she is running for president.  It ends with the original text replaced with, "On Jan. 14, the Democratic primary will begin.  And you'll see why 2008 won't be like 1984."  The Apple symbol is a morphed into an "O", which is followed by a logo for Barack Obama's presidential campaign website.  Barack Obama's presidential spokesman Bill Burton has said "Hillary 1984" was not created by the Obama campaign.  "It's somebody else's creation," he said.

Joe Rospars: Joe Rospars is the founder of Blue State Digital.  Rospars was the New Media Director of Barack Obama's presidential campaign and for both the 2008 and 2012 presidential campaigns.  Rospars also was Barack Obama's principal digital strategist and adviser.  He managed the digital integration of fundraising, communications, and mobilization of grassroots effort.  Prior to Obama's campaign, he worked with Governor Howard Dean at the Democratic National Committee, Dean's campaign for party chairman, and at Democracy for America, and on Howard Dean's 2004 presidential campaign.

Geoff Garin: Geoff Garin (born 1953) is an American pollster, who served as co-chief strategist for the latter part of Senator Hillary Clinton's 2008 Presidential campaign.  He was a pollster and strategist in 2011-2012 for Priorities USA Action, the superPAC that supported Barack Obama's reelection, and currently serves in those same roles for Priorities USA in support of Hillary Clinton's election as president.

Hillary Clinton presidential campaign, 2016: The 2016 presidential campaign of Hillary Rodham Clinton was announced in a YouTube video, on April 12, 2015.  Hillary Clinton was the 67th United States Secretary of State and served during the first term of the Obama administration from 2009 to 2013.  She was previously the United States Senator from New York from 2001 to 2009, and is the wife of former President Bill Clinton.  This campaign marked her second bid for the presidency after losing in her first attempt to Barack Obama in the 2008 Democratic primary.

Barack Obama: Der schwarze Kennedy: Barack Obama – Der schwarze Kennedy (English: Barack Obama – The black Kennedy ) is a best-selling German-language biography of President of the United States Barack Obama by journalist Christoph von Marschall.  The book was written by Marschall while he spent much of 2007 travelling with Obama's presidential campaign as a reporter for the Berlin newspaper "Der Tagesspiegel".  It covers Obama’s life from his childhood, through his college years, his time as a community organizer in Chicago, Illinois, and his political career including his 2008 presidential campaign.  Marschall sums up his impressions of Obama by saying, “Seine Lebensgeschichte steht für den amerikanischen Traum.”  (“His life story stands for the American Dream.”)

Shefali Razdan Duggal: Shefali Razdan Duggal (born November 22, 1971) is an Indian-born American Democratic political activist in San Francisco who is a Presidential Appointee to President Barack Obama to the United States Holocaust Memorial Council, which supervises the United States Holocaust Memorial Museum, for a term expiring in January 2018.  She was an active fundraiser for the Barack Obama election campaign in 2008 where she was a Trustee for the DNC South Asian American Leadership Council.  She focused on South Asian and Young Professional outreach, co-hosting a number of fundraising events for both the Senator and his surrogates.  She was a member of President Barack Obama's National Finance Committee for his reelection campaign in 2012, a co-chair for Obama Victory Trustees, and the Northern California Finance Committee.  She worked on the Massachusetts Democratic Party, New Hampshire Democratic Party, and Senators Ted Kennedy and Dianne Feinstein.  She also worked on the Al Gore presidential campaign in 2000, and Hillary Clinton’s presidential campaign in 2008.

NGP VAN: NGP VAN is a privately owned American company specializing in helping progressive campaigns and organizations leverage technology to meet their goals.  In 2009, the company was the largest partisan provider of campaign compliance software, used by most Democratic members of Congress.  The company's services have been utilized by clients such as the Obama 2008 presidential campaign, the Obama 2012 presidential campaign, the Bernie Sanders 2016 presidential campaign, the Hillary Clinton 2016 presidential campaign, the British Liberal Democrats, and the Liberal Party of Canada.  Its current president and CEO, Stuart Trevelyan, was a veteran of the 1992 Clinton-Gore "War Room", providing research, analysis, and whip counts to the Clinton Administration as a member of the White House Office of Legislative Affairs.

Michael Signer: Michael Signer is the current mayor of Charlottesville, Virginia, an author, and attorney.  He is a Virginia Democratic Party activist and former candidate for lieutenant governor.  A lecturer at the University of Virginia, he has worked for the Center for American Progress, and with John Podesta on Barack Obama's State Department Transition Team.

Vast right-wing conspiracy: "Vast right-wing conspiracy" is a conspiracy theory first described in a 1995 memo by political opposition researcher Chris Lehane and then referenced in 1998 by the then First Lady of the United States Hillary Clinton, in defense of her husband, President Bill Clinton, characterizing the continued allegations of scandal against her and her husband, including the Lewinsky scandal, as part of a long campaign by Clinton's political enemies.  The term has been used since, including in a question posed to Bill Clinton in 2009 to describe verbal attacks on Barack Obama during his early presidency.  Hillary Clinton mentioned it again during her 2016 presidential campaign.

Supporting paragraphs: Michael Signer John Podesta
Answer: State Department Transition Team