[6] The change, however, proved unpopular with readers; in August 2011, the Tribune discontinued the tabloid edition, returning to its established broadsheet format through all distribution channels.

[19] Before and during the American Civil War, the new editors strongly supported Abraham Lincoln, whom Medill helped secure the presidency in 1860, and pushed an abolitionist agenda.

[citation needed] In the 20th-century, Colonel Robert R. McCormick, who took control in the 1920s, the paper was strongly isolationist and aligned with the Old Right in its coverage of political news and social trends.

From the 1930s to the 1950s, it excoriated the Democrats and the New Deal of Franklin D. Roosevelt, was resolutely disdainful of the British and French, and greatly enthusiastic for Chiang Kai-shek and Sen. Joseph McCarthy.

[citation needed] When McCormick assumed the position of co-editor with his cousin Joseph Medill Patterson in 1910, the Tribune was the third-best-selling paper among Chicago's eight dailies, with a circulation of only 188,000.

The Tribune's legendary sports editor Arch Ward created the Major League Baseball All-Star Game in 1933 as part of the city's Century of Progress exposition.

The Tribune's June 7, 1942, front page announcement that the United States had broken Japan's naval code was the revelation by the paper of a closely guarded military secret.

[26] The story revealing that Americans broke the enemy naval codes was not cleared by censors, and had U.S. President Franklin D. Roosevelt so enraged that he considered shutting down the Tribune.

{{Citation needed|date=February 2025} On May 1, 1974, in a major feat of journalism, the Tribune published the complete 246,000-word text of the Watergate tapes, in a 44-page supplement that hit the streets 24 hours after the transcripts' release by the Nixon White House.

[41] In November 1982, Tribune managing editor William H. "Bill" Jones, who had won a Pulitzer Prize in 1971, died at age 43 of cardiac arrest as a result of complications from a long battle with leukemia.

[50] In November 1992, Tribune associate subject editor Searle "Ed" Hawley was arrested by Chicago police and charged with seven counts of aggravated criminal sexual abuse for allegedly having sex with three juveniles in his home in Evanston, Illinois.

[53] In December 1993, the Tribune's longtime Washington, D.C. bureau chief, Nicholas Horrock, was fired after he chose not to attend a meeting that editor Howard Tyner requested of him in Chicago.

[54] Horrock, who shortly thereafter left the paper, was replaced by James Warren, who attracted new attention to the Tribune's D.C. bureau through his continued attacks on celebrity broadcast journalists in Washington.

[60] In 1997, the Tribune celebrated its 150th anniversary in part by tapping longtime reporter Stevenson Swanson to edit the book Chicago Days: 150 Defining Moments in the Life of a Great City.

On September 2, 1997, the Tribune promoted longtime City Hall reporter John Kass to take Royko's place as the paper's principal Page Two news columnist.

[40] And, in 2008, an investigative reporting team including Patricia Callahan, Maurice Possley, Sam Roe, Ted Gregory, Michael Oneal, Evan Osnos and photojournalist Scott Strazzante won the Pulitzer for its series about faulty government regulation of defective toys, cribs and car seats.

[75] On September 15, 2002, Lipinski wrote a terse, page-one note informing readers that the paper's longtime columnist, Bob Greene, resigned effective immediately after acknowledging "engaging in inappropriate sexual conduct some years ago with a girl in her late teens whom he met in connection with his newspaper column."

[78] In May 2004, the Tribune revealed that freelance reporter Mark Falanga was unable to verify some facts that he inserted in a lifestyle-related column that ran on April 18, 2004, about an expensive lunch at a Chicago restaurant—namely, that the restaurant charged $15 for a bottle of water and $35 for a pasta entree.

In October 2004, Tribune editor Ann Marie Lipinski at the last minute spiked a story written for the paper's WomanNews section by freelance reporter Lisa Bertagnoli titled "You c_nt say that (or can you?

Initially denying the existence of a so-called "Category I" admissions program, university President B. Joseph "Joe" White and Chancellor Richard Herman later admitted that there were instances of preferential treatment.

Although they claimed the list was short and their role was minor, the Tribune, in particular, revealed emails through a FOIA finding that White had received a recommendation for a relative of convicted fundraiser Tony Rezko to be admitted.

[100] Among those let go were DuPage County reporter Art Barnum, Editorial Board member Pat Widder and photographer Dave Pierini.

[102][103] At the same time, the paper gave buyouts to six editorial staffers, including Pulitzer Prize-winning reporter William Mullen, Barbara Mahany and Nancy Reese.

[104] In June 2012, the Tribune's Pulitzer Prize-winning cultural critic Julia Keller left the paper to join the faculty of Ohio University and to pursue a career as a novelist.

[105] In September 2012, Tribune education reporter Joel Hood resigned from the paper to become a real estate broker, City Hall reporter Kristen Mack left the paper to become press secretary for Cook County Board President Toni Preckwinkle,[106] and the Tribune hired Pulitzer Prize-winning photographer John J. Kim from the Chicago Sun-Times.

[110] The paper's TribLocal unit had been formed in 2007 and uses staff reporters, freelance writers and user-generated content to produce hyperlocal Chicago-area community news.

[120] Defunct Newspapers Journals TV channels Websites Other Congressional caucuses Economics Gun rights Identity politics Nativist Religion Watchdog groups Youth/student groups Social media Miscellaneous Other In a 2007 statement of principles published in the Tribune's print and online editions, the paper's editorial board described the newspaper's philosophy, from which is excerpted the following: The Chicago Tribune believes in the traditional principles of limited government; maximum individual responsibility; minimum restriction of personal liberty, opportunity and enterprise.

As of 2018[update], the Chicago Tribune and Los Angeles Times withdrew their website from European Union nations to avoid the purview of the General Data Protection Regulation.

In 2016, the Tribune endorsed the Libertarian Party candidate, former New Mexico Governor Gary Johnson, for president, over Republican Donald Trump and Democrat Hillary Clinton.

[40] In 2022, Cecilia Reyes, Chicago Tribune, and Madison Hopkins, Better Government Association, won a Pulitzer Prize in local reporting for a piercing examination of the city's long history of failed building- and fire-safety code enforcement, which let scofflaw landlords commit serious violations that resulted in dozens of unnecessary deaths.