Mother: Naomi (Nussle) Hastert
Marriage: Jean (Kahl) Hastert (1973-present)
Children: Ethan and Joshua
Education: Wheaton College, B.A., 1964; Northern Illinois University, M.S., 1967
Goes by the nickname "Denny."
Was named Illinois Coach of the Year after leading the Yorkville High School wrestling team to the state championship.
Instituted the so-called "Hastert Rule," an informal guideline where only legislation supported by "the majority of the majority" party is brought to a vote on the House floor.
1964-1980 - Wrestling and football coach and government/history teacher at Yorkville High School.
1980-1986 - Member of the Illinois House of Representatives.
January 3, 1987-November 26, 2007 - U.S. Representative from Illinois' 14th congressional district.
1995-1999 - House Chief Deputy Minority Whip.
January 6, 1999 -
Is elected speaker of the House, replacing Newt Gingrich.
November 22, 2003 -
Hastert fights hard to secure passage of a Medicare bill in the House. The vote takes three hours and lasts well into the night. It is signed into law
by President George W. Bush
on December 8 after also being passed by the Senate.
January 3, 2006 -
Donates $70,000 of campaign contributions from companies associated with lobbyist Jack Abramoff to charity after Abramoff pleads guilty to corruption charges.
June 1, 2006 - Surpasses Joe Cannon to become the longest-serving Republican speaker of the House in U.S. history.
October 3, 2006 -
Appears on "The Rush Limbaugh Show" and says he has no intention of resigning regarding the controversy over Rep. Mark Foley's (D-FL) sexually explicit e-mails to underage pages.
November 7, 2006 - Is re-elected to his eleventh term in Congress. Republicans lose their majority in the House, so Hastert loses his position as speaker of the House when the new Congress begins on January 4, 2007.
August 17, 2007 - Announces that he will not run for re-election in 2008.
November 15, 2007 -
Announces his resignation on the House floor. He formally resigns on November 26 after 20 years in office.
June 2008 - Joins the Washington lobbying firm of Dickstein Shapiro as a senior adviser.
June 8, 2009 - Dennis Hastert's son, Ethan, announces he will run for his father's former congressional seat but later loses in the GOP primary.
May 7, 2010 -
Hastert is conferred the Grand Cordon of the Order of the Rising Sun by Emperor Akihito of Japan.
May 28, 2015 -
Federal officials indict former House Speaker Dennis Hastert for lying to the FBI about $3.5 million he agreed to pay to an undisclosed subject to "cover up past misconduct." The Justice Department alleges that Hastert paid the subject a total of about $1.7 million over a period of years beginning in 2010 and ending in 2014. Hastert resigns from the lobbying firm Dickstein Shapiro.
May 29, 2015 -
Sources with knowledge of the federal government investigation tell CNN Hastert was paying a former student to keep quiet
about allegations of sexual misconduct from the time when Hastert was a teacher and wrestling coach in Illinois.
June 9, 2015 - Pleads not guilty to all charges
related to lying to the FBI about $3.5 million he agreed to pay to an undisclosed subject to "cover up past misconduct."
October 28, 2015 -
Hastert pleads guilty to charges of lying to federal investigators stemming from his attempts to cover up sexual misconduct with a former student in Illinois.
December 17, 2015 - A statement is released announcing that Hastert was admitted to the hospital in the first week of November 2015. He had a stroke and sepsis. This was followed by two back surgeries.
April 6, 2016 -
In a federal court filing, defense attorneys ask for probation for Hastert instead of jail time
, saying he was "deeply sorry" for his actions, adding his remorse is emotional and heartfelt.
April 8, 2016 -
Documents released by prosecutors allege Hastert sexually abused at least four boys
when he coached high school wrestling in Illinois decades ago.
April 27, 2016 -
Hastert is sentenced to 15 months in prison, is ordered to pay $250,000 to a victims' fund, must serve two years of supervised release once he finishes his prison term, and enter a sex offender treatment program.
June 22, 2016 - Hastert begins serving his 15-month sentence at a federal medical prison in Rochester, Minnesota.