Question: For which foundation is the 47th U.S. Vice President's chief of staff a former president?

Context paragraphs:
Bruce Reed (political operative): Bruce Reed (born March 16, 1960) is the former president of the Broad Foundation.  Prior to assuming that role in December 2013, he served as Chief of Staff to U.S. Vice President Joe Biden and is a former CEO of the Democratic Leadership Council (DLC).

Air Force Two: Air Force Two is the air traffic control call sign held by any United States Air Force aircraft carrying the U.S. Vice President, but not the President.  The term is often associated with the Boeing C-32, a modified 757 which is most commonly used as the Vice President's transport.  Other 89th Airlift Wing aircraft, such as the Boeing C-40 Clipper, C-20B, C-37A, and C-37B have served in this role as well.  The VC-25A, the aircraft most often used by the President as Air Force One, has also been used by the vice president as Air Force Two.

Robert Nyce: Robert E. Nyce is a former Republican member of the Pennsylvania House of Representatives.  A graduate of Northampton Area Senior High School, Northampton, PA and Moravian College, Bethlehem, PA for over twenty years he was a tax professional working at Lehigh Portland Cement Company, Allentown, PA from 1970 to 1973, Manager, Credit Taxes, Insurance and Payroll at Frick Company, Waynesboro, PA from 1973 to 1975, Senior Tax Accountant for Bethlehem Steel Corporation from 1975 to 1985 and Asst. Vice President, Taxes for Chrysler First, Inc., Allentown, PA from 1985 to 1990.  He was a member of the Tax Executives Institute including Chairman of the State Tax Committee in the 1980s.  During his private sector employment, Mr. Nyce was active in his community of East Allen Township.  From 1979 to 1984 he served as a member and Chairman of the East Allen Township Municipal Authority and again from 2007 to 2013 as a member and Treasurer.  From 2011 to 2013 Mr. Nyce negotiated and helped close the sale of the East Allen Township Municipal Authority's assets to The City of Bethlehem and the Bath Borough Municipal Authority thereby ensuring high quality service of water and sewer for the future for all residents of East Allen Township.  From 1984 to 1990, Mr. Nyce served on the Northampton Area School District Board of Directors as member, Vice Chairman and Chairman.  He also served on the Bethlehem Area Vocational Technical School Joint Operating Committee as member, Vice Chairman and Chairman.  In both capacities, he was responsible for normal business operations and participated in union contract negotiations with staff.  In 1990, Mr. Nyce ran for and was elected State Representative for the 138th PA House District encompassing parts of Northampton and Monroe Counties.  During his three terms in the House of Representatives he served on several important committees: Education, Local Government, Fish and Game, Finance to name a few.  In 1996 he ran for PA Auditor General in an unsuccessful bid to represent the people of PA as their financial watchdog.  Following the campaign, he was hired as the Executive Director of the Pennsylvania Independent Regulatory Review Commission (IRRC).  Mr. Nyce served for eight years in that capacity overseeing two major revisions to the Regulatory Review Act and many significant regulatory issues facing the residents of Pennsylvania.  The PA IRRC reviews all regulations promulgated in PA and provides citizens an opportunity to comment on and affect those regulations prior to their promulgation by the state agency that authored the regulation.  The two exceptions are the PA Fish and Boat Commission and the PA Game Commission which remain outside the regulatory review process.  In 2005, Mr. Nyce retired from state government and now resides in Northampton County.  He has been a member of the Free and Accepted Masons of PA since 1971 and the Rajah Shrine, Reading, PA since the mid-ninety's.  Mr. Nyce is a past member of the Northampton Exchange Club.  Mr. Nyce served in the U.S. Army from 1966 to 1969.  Having completed his basic training at Fort Knox, Kentucky and Advanced Individual Training at Fort Lewis, Washington he was assigned to the 1st Battalion, 3rd Infantry Unit, "The Old Guard" at Arlington National Cemetery where he served for about two and one half years attaining the rank of Staff Sergeant, E-6 before taking an early release to return to Moravian College in September 1969.  While serving at Arlington, SSG Nyce participated in former President Dwight D. Eisenhower's funeral, President Nixon's Inauguration and Robert F. Kennedy's Funeral.

Seal of the Vice President of the United States: The Seal of the Vice President of the United States is used to mark correspondence from the U.S. vice president to other members of government, and is also used as a symbol of the vice presidency.  The central design, directly based on the Seal of the President of the United States (and indirectly on the Great Seal of the United States), is the official coat of arms of the U.S. vice presidency and also appears on the vice presidential flag.

Office of the Vice President of the United States: The Office of the Vice President includes personnel who directly support or advise the Vice President of the United States.  The Office is headed by the Chief of Staff to the Vice President of the United States, currently Nick Ayers.  The Office also provides staffing and support to the Second Lady of the United States.  It is primarily housed in the Eisenhower Executive Office Building, with offices for the Vice President also in the West Wing, the U.S. Capitol and in the Vice President's official residence.

Jim Lentz: Jim Lentz is the chief executive officer for Toyota North America; president and chief operating officer of Toyota Motor North America, Inc. (TMA); and a senior managing officer of the parent company Toyota Motor Corporation (TMC) which is located in Japan.  In that role Lentz manages all of Toyota’s North American affiliate companies which include TMA, Toyota Motor Sales, U.S.A., Inc. (TMS), and Toyota Motor Engineering & Manufacturing, North America, Inc. (TEMA), which includes responsibilities for Toyota Motor Manufacturing Canada Inc. (TMMC), and oversight for Toyota Canada, Inc. (TCI).  Lentz also serves as the chairman of the North American Executive Committee.  This is composed of the top leaders from the affiliate companies.  Most recently Lentz was the president and chief executive officer of TMS and senior vice president of TMA and served in a global advisory capacity as the managing officer for TMC.  Before that he served as president and chief operating officer and executive vice president of TMS.  Lentz previously held several executive positions including Toyota division group vice president and general manager where he oversaw all sales, logistics and marketing activities for Toyota and Scion regional sales offices and distributors.  He also served as the group vice president of marketing for the Toyota division and vice president of Scion, and was responsible for the initial launch of a new line of vehicles.  Lentz spent several years in the field as vice president and general manager of the Los Angeles region and before that general manager of the San Francisco region.  Prior to his role as general manager Lentz was vice president of marketing services for CAT in Maryland.  He has also held several other TMS positions, including field training manager, sales administration manager and truck sales team member.  Lentz joined Toyota in 1982 as the merchandising manager for its Portland, Oregon region where he later became the distribution manager and field operations manager.  He serves as chairman on the board of directors of The Global Automakers and is also a member of the executive advisory board for Daniels College of Business at the University of Denver (DU), his alma mater.  He was named “Marketer of the Year” by Advertising Age in 2006, an Automotive News “All Star” in 2007 and honored at Industry Leader of the year.

Joe Biden: Joseph Robinette "Joe" Biden Jr. ( ; born November 20, 1942) is an American politician who was the 47th Vice President of the United States from 2009 to 2017.  A member of the Democratic Party, he represented Delaware as a United States Senator from 1973 until becoming Vice President in 2009.

1840 Democratic National Convention: The 1840 Democratic National Convention was held in Baltimore.  The Democrats nominated President Martin Van Buren for reelection in 1840 in spite of his unpopularity following the Panic of 1837.  Vice President Richard M. Johnson was not retained on the ticket, as he was largely seen as a liability in the 1836 election and had focused much of his time as vice president on his own economic affairs.  Former President Andrew Jackson backed James K. Polk for the position of vice president, but Van Buren supported his vice president's renomination.  The convention ultimately decided not to nominate a running mate for Van Buren.  As a result, Van Buren became the only major party presidential nominee since the passage of the 12th Amendment to seek election without a running mate.

Glen Post: Glen F. Post III (born October 4, 1952) is the chief executive officer and president of CenturyLink, an S&P 500 integrated communications service provider based out of Monroe, Louisiana.  He earned a bachelor's degree in accounting in 1974 at Louisiana Tech University and an MBA in 1976 at Louisiana Tech.  Post joined CenturyTel in 1976.  He was named vice president in 1982 and was promoted to senior vice president and treasurer in 1984.  He was appointed to the CenturyTel board of directors in 1985, and the following year he was promoted to senior vice president and chief financial officer.  In 1988 Post was named executive vice president and chief operating officer.  He became the president and chief operating officer of CenturyTel in 1990.  In 1992 Post was named vice chairman of the board, president, and chief executive officer.  In 2002 he was appointed chairman of the board and chief executive officer.  Since 2009 Post has served as chief executive officer and president of CenturyLink.  His honors include: Louisiana Tech College of Administration and Business Distinguished Alumni in 1991, Louisiana Tech University Tower Medallion Award in 1997 and DeGree Enterprises Lifetime Achievement Award in Business 2003.

Bobby Mehta: Siddharth N. "Bobby" Mehta was former CEO and vice chairman of HSBC North America.  Mehta served as an Advisor of TransUnion since December 31, 2012.  Mehta serves as consultant of TransUnion.  He served the chief executive officer and president of TransUnion from August 2007 to December 31, 2012, and Transunion Financing Corp. until December 31, 2012.  From May 2007 to July 2007, he served as a consultant to the board of directors at TransUnion.  He served as the chief executive officer and president of TransUnion until December 31, 2012.  He served as the chief executive officer of TransUnion LLC.  He served as chairman of the board and chief executive officer of HSBC Finance Corporation from April 2005 to February 2007.  He served as chief executive officer and president of TransUnion LLC from 2007 to 2012.  From 1998 to 2007, he held a variety of positions with HSBC Finance Corporation and HSBC North America Holdings, Inc.  Mehta served as chief executive officer of HSBC North America until February 2007.  Mehta served as consultant of TransUnion since May 2007 until July 2007.  Mehta served as group managing director of HSBC Holdings PLC of HSBC Finance Corp. since April 30, 2005, and its unit chief executive officer since March 2005.  He served as the chief executive of HS BC North America Holdings Inc., of HSBC Finance Corp., from March 2005 to February 15, 2007.  He served as an executive chairman of HSBC Financial Corporation Limited since April 2005 and served as its chief executive officer from April 2005 to February 15, 2007.  He served as the chief executive officer of HSBC Bank USA, N.A. until February 2007.  He served as the chief executive officer of HSBC North America Holdings Inc. since March 2005.  He served as chairman and chief executive officer of HSBC Financial Corp., Ltd.  He oversaw HSBC's global credit card services, its North American consumer lending and mortgage services businesses and its first mortgage operation.  He was also responsible for corporate marketing, strategic planning and corporate development for HSBC North America Holdings Inc. and had responsibility for the strategic management of credit cards throughout the HSBC Group.  Mehta served as group executive of Credit Card Services, Auto Finance and Canada of Household International Inc., since July 2002.  He worked at MasterCard’s U.S. region board since March 2000.  Mehta joined Household International Inc., in 1998.  He served as senior vice president of The Boston Consulting Group in Los Angeles and co-leader of Boston Consulting Group Financial Services Practice in the United States.  Mehta served as a director of Global Board of MasterCard Incorporated since March 17, 2005.  He served as unit chairman of HSBC Holdings PLC and served as its board member since March 2005.  He served as vice chairman and director of HSBC Financial Corporation Limited., (Formerly Household International Inc.).  He has been a director of Avant Credit Corporation since December 18, 2014.  He has been an independent director of The Allstate Corporation since February 19, 2014.  He serves as a member of the advisory board at Core2 Group, Inc.  He has been non-executive independent director at Piramal Enterprises Ltd since April 1, 2013.  He serves on the boards of Datacard, Chicago Public Education Fund, University of Chicago Laboratory Schools, The Economic Club of Chicago, The Field Museum and Myelin Repair Foundation.  He serves as a director of TransUnion Corp. and TransUnion LLC.  He served as a director of MasterCard International Inc. (also known as MasterCard Worldwide) (formerly, MasterCard Inc.), since March 17, 2005.  He served as a director of HSBC Financial Corp.  Ltd.  He has been a director of TransUnion since April 2012.  Mehta serves on the board of international advisors for the Monterey, California, Institute of International Studies and is a member of the Financial Services Roundtable.  He also serves on the board of advisors for the Myelin Repair Foundation.  Mehta holds a Bachelor of Arts in economics from the London School of Economics and Masters of Business Administration from the University of Chicago.  He stepped down as head of the North American unit after the lender raised its forecast for bad loans in the U.S.  He is of Indian descent.

Supporting paragraphs: Bruce Reed (political operative) Joe Biden
Answer: Broad Foundation