Question: Richard Burton became involved in a mayoral campaign for a politician that previously served as the Mayor of Baltimore during what time period?

Passages:
Stephen T. "Steve" Williams is the current mayor of Huntington, West Virginia.  His campaign against his predecessor, Kim Wolfe, in the 2012 mayoral election marked the first time a sitting city official challenged an incumbent mayor since Huntington switched to a strong mayor form of government in 1985.  Williams previously served as Huntington's city manager, a member of the West Virginia House of Delegates, and a member of the Huntington City Council. David Raymond Miller (born December 26, 1958) is the president and CEO of WWF-Canada, the Canadian division of the international World Wildlife Fund.  A former politician, Miller was the 63rd Mayor of Toronto from 2003 to 2010.  He entered politics as a member of the New Democratic Party, although his mayoral campaign and terms in office were without any formal party affiliation.  He did not renew his party membership in 2007.  After declining poll numbers, Miller announced on September 25, 2009, that he would not seek a third term as mayor in the 2010 election, citing family reasons.  He subsequently served as an advisor on urban issues at the World Bank from 2011 to 2013. Martin Joseph O'Malley (born January 18, 1963) is an American politician and attorney who served as the 61st Governor of Maryland from 2007 to 2015.  He previously served as the Mayor of Baltimore from 1999 to 2007, and was a councilman from the Third Councilmanic District in the northeast section of the city on the Baltimore City Council from 1991 to 1999. Senator Dilan is the son of Esther and Gilberto Dilan, who migrated from Puerto Rico in 1947.  He grew up in the community of Bushwick, and first involved himself in electoral politics in high school in 1965, when he worked as a volunteer in a mayoral campaign.  He received a Special Baccalaureate Degree from Brooklyn College.  He is married to Debra Hicks and they have three children: Erik Martin Dilan (who represents Brooklyn in the City Council), Melissa and Nicole, and one grandchild, Daniel Martin Dilan.  Dian vacations in the Catskills. Roger Eugene Ailes (May 15, 1940 – May 18, 2017) was an American television executive and media consultant.  He was the founder and one-time Chairman and CEO of Fox News and the Fox Television Stations Group, from which he resigned in July 2016 following allegations that he sexually harassed female colleagues.  Ailes was a media consultant for Republican presidents Richard Nixon, Ronald Reagan, and George H. W. Bush, and for Rudy Giuliani's first mayoral campaign.  In 2016, after he left Fox News, he became an adviser to the Donald Trump campaign, where he assisted with debate preparation. George John Karb (February 15, 1858 – May 15, 1937) was the 30th and 39th mayor of Columbus, Ohio and the 27th person to serve in that office.  He was first elected in 1890 and served Columbus for two consecutive terms.  After four years as mayor, he was elected as Sheriff of Franklin County.  He later resought election in the 1911 mayoral campaign and defeated incumbent Republican mayor George S. Marshall.  He served Columbus as mayor during World War I and the Spanish Influenza of 1918.  After three consecutive terms in office Karb was defeated in the 1919 mayoral election by James J. Thomas.  Karb died on May 15, 1937. Ruben Figueres is a Spanish/American political consultant and advertising executive who advised the mayoral campaign of Chicago mayor Rahm Emanuel and the 2012 presidential campaign for Barack Obama. Richard Burton is a Baltimore, Maryland, city council employee and runs the "Believe" campaign.  He was a rapper before becoming involved in Martin O'Malley's first Mayoral campaign after meeting him in 1998. Catherine E. Pugh (born Crump; March 10, 1950), an American Democratic politician, is the 50th and current mayor of Baltimore City, Maryland.  Pugh has been involved in Maryland politics since 1999 when she served on the Baltimore City Council.  She has also held office in the Maryland House of Delegates and the Maryland Senate, serving as the Majority Leader from 2015 to 2016.  She first ran for Baltimore City mayor in 2011 and lost the primary to Stephanie Rawlings-Blake.  Pugh ran again in 2016 and won the primary against former Mayor Sheila Dixon.  Pugh then won the mayoral election on November 8, 2016 with 57% of the popular vote, and took office on December 6, 2016.  She is Baltimore's third consecutive female mayor. Croatian Civic Party (Croatian: "Hrvatska građanska stranka" or HGS) is a right-wing political party in Croatia.  It was established in September 2009 by Željko Kerum, an entrepreneur and mayor of Split after he won the mayoral elections as an independent candidate.  During his mayoral campaign he often criticized political parties.  Between 2009-2013 it was the ruling party in the city of Split in coalition with the far-right Croatian Pure Party of Rights (HČSP).

Supporting sentences:
Richard Burton is a Baltimore, Maryland, city council employee and runs the "Believe" campaign.  He was a rapper before becoming involved in Martin O'Malley's first Mayoral campaign after meeting him in 1998. Martin Joseph O'Malley (born January 18, 1963) is an American politician and attorney who served as the 61st Governor of Maryland from 2007 to 2015.  He previously served as the Mayor of Baltimore from 1999 to 2007, and was a councilman from the Third Councilmanic District in the northeast section of the city on the Baltimore City Council from 1991 to 1999.