Question: What year did the woman whose 2016 campaign John Podesta was chairman of become First Lady of the United States?

Context articles: Podesta emails
Vicki Risch
Hillary Clinton
Pizzagate conspiracy theory
Office of the First Lady of the United States
Juana del Pino y Vera Mujica
Hillary Clinton cattle futures controversy
List of First Ladies of the United States
The Dark Wave
Anna Harrison

In March 2016, the personal Gmail account of John Podesta, a former White House chief of staff and the chairman of Hillary Clinton's 2016 U.S. presidential campaign, was compromised in a data breach, and a collection of his emails, many of which were work-related, were stolen.
 Cybersecurity researchers as well as the United States government attributed responsibility for the breach, which was accomplished via a spear-phishing attack, to the hacking group Fancy Bear, allegedly affiliated with Russian intelligence services.
Vicki Risch is the former First Lady of Idaho and the wife of U.S. Sen. Jim Risch, who served as Governor of Idaho in 2006.
 She became First Lady on May 26, 2006, when her husband succeeded former Gov. Dirk Kempthorne, who resigned to become United States Secretary of the Interior.
 Mrs. Risch succeeded former First Lady Patricia Kempthorne who had held the post for over seven years.
 Mrs. Risch served as First Lady until January 2007, as her husband did not seek a full term as governor, but rather was reelected to his old post as lieutenant governor.
Hillary Diane Rodham Clinton ( ; born October 26, 1947) is an American politician who was the First Lady of the United States from 1993 to 2001, U.S. Senator from New York from 2001 to 2009, 67th United States Secretary of State from 2009 to 2013, and the Democratic Party's nominee for President of the United States in the 2016 election.
Pizzagate is a debunked conspiracy theory that emerged and went viral during the 2016 United States presidential election cycle.
 In the fall of 2016, the personal e-mail account of John Podesta, Hillary Clinton's campaign manager, was hacked in a spear-phishing attack and his e-mails were made public by WikiLeaks.
 Proponents of the Pizzagate theory falsely claimed that the e-mails contained coded messages referring to human trafficking and connecting a number of restaurants in the United States and members of the Democratic Party with an alleged child-sex ring.
 The theory has been extensively discredited by a wide array of organizations, including the District of Columbia Police Department.
The Office of the First Lady of the United States is the staff accountable to the First Lady of the United States.
 The office and its responsibilities, while not mandated, have grown as the role of the First Lady has grown and formalized through the history of the United States.
 The Office of the First Lady is an entity of the White House Office, part of the Executive Office of the President.
Juana del Pino y Vera Mujica (December 21, 1786 - December 14, 1841) was the daughter of the viceroy of the Río de la Plata Joaquín del Pino and wife of Bernardino Rivadavia, first President of Argentina, and therefore the first woman to become First Lady of Argentina.
In 1978 and 1979, lawyer and First Lady of Arkansas Hillary Rodham Clinton engaged in a series of trades of cattle futures contracts.
 Her initial $1,000 investment had generated nearly $100,000 when she stopped trading after ten months.
 In 1994, after Clinton had become First Lady of the United States, the trading became the subject of considerable controversy regarding the likelihood of such a spectacular rate of return, possible conflict of interest, and allegations of disguised bribery.
The First Lady of the United States is the hostess of the White House.
 The position is traditionally filled by the wife of the President of the United States, but, on occasion, the title has been applied to women who were not presidents’ wives, such as when the president was a bachelor or widower, or when the wife of the president was unable to fulfill the duties of the First Lady herself.
 The First Lady is not an elected position; it carries no official duties and receives no salary.
 Nonetheless, she attends many official ceremonies and functions of state either along with or in place of the president.
 Traditionally, the First Lady does not hold outside employment while occupying the office.
 She has her own staff, including the White House Social Secretary, the Chief of Staff, the Press Secretary, the Chief Floral Designer, and the Executive Chef.
 The Office of the First Lady is also in charge of all social and ceremonial events of the White House, and is a branch of the Executive Office of the President.
The Dark Wave is a 1956 American short documentary film directed by Jean Negulesco about a young girl with severe epilepsy.
 It was nominated for two Academy Awards, one for Best Documentary Short and the other for Best Two-Reel Short.
 The short stars Charles Bickford and features Nancy Davis, the actress who would later become First Lady of the United States Nancy Reagan.
Anna Tuthill Symmes Harrison (July 25, 1775 – February 25, 1864), wife of President William Henry Harrison and grandmother of President Benjamin Harrison, was nominally First Lady of the United States during her husband's one-month term in 1841, but she never entered the White House.
 At the age of 65 years during her husband's presidential term, she is the oldest woman ever to become First Lady, as well as having the distinction of holding the title for the shortest length of time, and the first person to be widowed while holding the title.
 She was the last First Lady to have been born in British America.