Question: Which Republican Chairman was born June 1, 1956? 

Context:
Charlie Ross (state senator)
Charlie Ross is an American politician and attorney who lives in Brandon, Mississippi.
 He served as Senator from District 20 in the Mississippi Senate until 2007.
 District 20 comprises parts of Madison and Rankin Counties.
 Ross was first elected to the Senate in 1997 after serving as the representative from District 59 in the Mississippi House of Representatives.
 Prior to his legislative service, he served as the Chairman of the Rankin County Republican Executive Committee.
 In 2008, Ross ran for Congress in Mississippi's 3rd congressional district, but was defeated in the primary by Rankin County Republican Chairman Gregg Harper.
Ken Karls
Ken Karls (born July 15, 1947) is a North Dakota political figure who served as the Chairman of the North Dakota Republican Party from 2003 until July 2007.
 On May 2, 2007 Karls announced that he would not be running for another two years in the job.
 Karls had been the state Republican chairman for four years, and his successor, Gary Emineth, was chosen at the party's committee meeting in Fargo in July.
Howie Lind
Howard R. Lind (born October 3, 1957) is a retired U.S. Navy commander, former Special Assistant in the Office of the Secretary of Defense, former 10th Congressional District Republican chairman, was a 2014 candidate for the U.S. Senate in Virginia, and a 2014 candidate for the Republican nomination in Virginia's 10th Congressional District.
Gregg Harper
Gregory Livingston Harper (born June 1, 1956) is the U.S. Representative for Mississippi 's 3 congressional district , serving since 2009.
 He is a member of the Republican Party.
 The district includes the wealthier portions of the state capital, Jackson, along with most of that city's suburbs.
 Other cities in the district include Meridian, Natchez, Starkville, and Brookhaven.
Michael Powell (lobbyist)
Michael Kevin Powell (born March 23, 1963) is an American former Republican chairman of the Federal Communications Commission and current president of the trade association the National Cable & Telecommunications Association (NCTA).
 He was appointed to the Federal Communications Commission by President Bill Clinton on November 3, 1997.
 President George W. Bush designated him chairman of the commission on January 22, 2001.
 Powell is the son of former Secretary of State Colin Powell and his wife Alma Powell.
William J. Maguire
William J. Maguire (June 12, 1916 – October 2, 1997) was an American Republican Party politician who served in the New Jersey General Assembly from 1976 to 1982.
 He served as Mayor of Clark, New Jersey and as a Union County Freeholder.
 Maguire was elected to the State Assembly in 1975, running with future Governor Donald DiFrancesco; they defeated incumbent Democrat Betty Wilson and her running mate, William A. Wolf, the Rahway Democratic Municipal Chairman.
 He was re-elected in 1977.
 Following the resignation of State Senator Peter J. McDonough in 1979, Maguire ran for the State Senate, but lost a vote of a Republican convention to DiFrancesco.
 He was re-elected to the Assembly, with future Congressman Bob Franks as his running mate.
 Maguire's political career came to an end in 1981, when redistricting traded Democratic towns in Union County for solid Republican towns in Essex County.
 DiFrancesco was facing a primary challenge from an Essex County Republican; to secure the Essex organization line in a district where Republican primary election voters were evenly split between Essex and Union, DiFrancesco agreed to put an Essex Republican on his ticket.
 John Renna, the Essex Republican Chairman, preferred that Franks (who had worked on Renna's 1977 bid for County Chairman), get the second Assembly seat.
 Maguire, replaced by Millburn Mayor Maureen Ogden, did not run for re-election.
Nicholas Micozzie
Nicholas Anthony "Nick" Micozzie (born November 2, 1928) is an American politician from Pennsylvania who served as a member of the Pennsylvania House of Representatives.
 He was Republican Chairman of the House Insurance Committee and was also a member of the House Health and Human Services Committee.
Matt E. Baker
Matthew E. "Matt" Baker (born January 24, 1957) is a Republican member of the Pennsylvania House of Representatives for the 68th District and was elected in 1992.
 For the 2009-10 legislative session, Baker has been appointed Republican Chairman of the House Health and Human Services Committee.
Ron Marsico
Ronald S. "Ron" Marsico (born October 30, 1947) is a Republican member of the Pennsylvania House of Representatives for the 105th District and was elected in 1988.
 He is the Republican Chairman of the House Judiciary Committee and also serves on the House Transportation Committee.
John J. Taylor (Pennsylvania politician)
John J. Taylor is a member of the Pennsylvania House of Representatives from the 177th Legislative District of Pennsylvania, United States, since 1984.
 He is Republican Chairman of the House Liquor Control Committee and a member of the House Urban Affairs Committee.
 Taylor was the chairman of the Republican City Committee from June 2013 to February 2016.

Answer: Gregg Harper