Question: What book was the 50th Speaker of the United States House of Representatives mentioned in? 

Context paragraphs:
Theodore M. Pomeroy: Theodore Medad Pomeroy (December 31, 1824 – March 23, 1905) was an American businessman and politician from New York who served as the 26th Speaker of the United States House of Representatives from March 3, 1869, to March 4, 1869, the shortest American speakership term in history.  He represented New York's 24th congressional district in the United States House of Representatives from 1861 to 1869.  He also served as the mayor of Auburn, New York, from 1875 to 1876, and in the New York State Senate from 1878 to 1879.

John Nance Garner: John Nance Garner IV (November 22, 1868 – November 7, 1967), known among his contemporaries as "Cactus Jack", was an American Democratic politician and lawyer from Texas.  He was the 39th Speaker of the United States House of Representatives from 1931 to 1933.  He was also the 32nd Vice President of the United States, serving from 1933 to 1941.  Along with Schuyler Colfax, Garner is one of two individuals to serve as Vice President of the United States and Speaker of the United States House of Representatives.

The Unwinding: The Unwinding: An Inner History of the New America is a 2013 non-fiction book by the American journalist George Packer.  The book uses biographies of individual Americans as a means of discussing important forces in American history from 1978 to 2012, including the subprime mortgage crisis, the decline of American manufacturing, and the influence of money on politics.  "The Unwinding" includes lengthy profiles of five subjects: a Youngstown, Ohio factory worker turned community organizer, a biodiesel entrepreneur from North Carolina, a Washington lobbyist and Congressional staffer, the Silicon Valley entrepreneur Peter Thiel, and people involved in the distressed housing market in Tampa, Florida.  Interspersed with these longer accounts are ten briefer biographical sketches of famous Americans such as the rapper Jay-Z, the politician Newt Gingrich, and the restaurateur and food activist Alice Waters.

Samuel J. Randall: Samuel Jackson Randall (October 10, 1828 – April 13, 1890) was a Democratic member of the United States House of Representatives from Pennsylvania in the late 19th century.  He served as the 29th Speaker of the House and was twice a contender for his party's nomination for President of the United States.

Tom Foley: Thomas Stephen Foley, KBE (March 6, 1929 – October 18, 2013) was an American lawyer and politician who served as the 49th Speaker of the United States House of Representatives from 1989 to 1995.  A member of the Democratic Party Foley represented Washington's 5th congressional district as from 1965 to 1995.  Foley was the first Speaker of the House since 1862 to be defeated in a re-election campaign.

Carl Albert Center: The Carl Albert Congressional Research and Studies Center (commonly known as the Carl Albert Center) is a nonpartisan institution at the University of Oklahoma in Norman, Oklahoma established for researching the United States Congress and, more generally, issues related to representative democracy and citizenship.  It is named for Carl Albert, a University of Oklahoma alumnus and the 46th Speaker of the United States House of Representatives.  The current director is Cindy Rosenthal, who is also the Mayor of Norman.

Joseph William Martin Jr.: Joseph William Martin Jr. (November 3, 1884 – March 6, 1968) was an American politician who served as the 44th Speaker of the United States House of Representatives from 1947 to 1949 and 1953 to 1955; he represented the district covering North Attleborough, Massachusetts.  He was the only Republican to serve as Speaker in a sixty-four year period from 1931 to 1995.  He was a "compassionate conservative" who opposed the New Deal and supported the conservative coalition of Republicans and southern Democrats, especially on opposing labor unions.

Newt Gingrich: Newton Leroy Gingrich ( ; born Newton Leroy McPherson; June 17, 1943) is an American politician and author from the state of Georgia who served as the 50th Speaker of the United States House of Representatives from 1995 to 1999.  He represented Georgia's 6th congressional district as a Republican from 1979 until his resignation in 1999.  In 2012, Gingrich was a candidate for the Republican Party presidential nomination.

Political positions of Paul Ryan: The political positions of Paul Ryan, since 1999 the U.S. Representative from Wisconsin's 1st congressional district and currently the 54th Speaker of the United States House of Representatives, are generally conservative, with a focus on fiscal policy.  Ryan was Chairman of the House Budget Committee from 2011 to 2015 and of Ways and Means in 2015.  Ryan was the Republican nominee for Vice President as the running mate of Mitt Romney in the 2012 presidential election.

Tip O'Neill: Thomas Phillip "Tip" O'Neill Jr. (December 9, 1912 – January 5, 1994) was an American politician who served as the 47th Speaker of the United States House of Representatives from 1977 to 1987, representing northern Boston, Massachusetts as a Democrat from 1953 to 1987.  The only Speaker to serve for five complete consecutive Congresses, he is the third longest-serving Speaker in American history after Sam Rayburn and Henry Clay.

Supporting paragraphs: The Unwinding Newt Gingrich
Answer: The Unwinding