Question: Which prominent speaker was featured in the State of the Black Union annual event and is  the American Representative for 13th congressional district?

Context paragraphs:
Barbara Lee: Barbara Jean Lee (born July 16, 1946) is the U.S. Representative for California 's 13th congressional district , serving East Bay voters from 1998 to 2013 during a time when the region was designated California 's 9 congressional district .  She is a member of the Democratic Party.  She was the first woman to represent the 9th district and is also the first woman to represent the 13th district.  Lee was the Chair of the Congressional Black Caucus and was the Co-Chair of the Congressional Progressive Caucus.  Lee is notable as the only member of either house of Congress to vote against the authorization of use of force following the September 11, 2001 attacks.  This made her a hero among many in the anti-war movement.  Lee has been a vocal critic of the war in Iraq and supports legislation creating a Department of Peace.

Adam Kinzinger: Adam Daniel Kinzinger (born February 27, 1978) is the U.S. Representative for Illinois 's 16 congressional district .  He is a member of the Republican Party.  He was first elected to Congress in 2010, winning election to represent Illinois's 11th congressional district.  After redistricting, he was re-elected to Congress in 2012, 2014, and 2016 to represent Illinois's 16th congressional district.

John Conyers: John James Conyers Jr. (born May 16, 1929) is an American Democratic politician and the U.S. Representative for  's 13th congressional district .  The district includes the western half of Detroit, as well as River Rouge, Ecorse, Redford Township, Dearborn Heights, Highland Park, Westland, Garden City, Inkster, Wayne, and Romulus.  As the longest-serving active Representative, he is the Dean of the House of Representatives.

Mark Bircher: Mark Bircher is a retired Marine Corps Reserve brigadier general, commercial pilot (Boeing 777), lawyer, scholar, and former Blue Angels pilot.  He was a Republican Party candidate in Florida's 13th congressional district special election, 2014.  He was the Republican candidate for the 2016 election in Florida's 13th congressional district.

Frederick R. Lehlbach: Frederick Reimold Lehlbach (January 31, 1876 – August 4, 1937) was an American lawyer and politician.  As a Republican, Lehlbach served as the U.S. Representative for New Jersey's 10th congressional district from 1915 to 1933 and as the representative from New Jersey's 12th congressional district from 1933 to 1937.  Lehlbach was also the nephew of Herman Lehlbach, a former U.S. Representative from New Jersey's 6th congressional district who served from 1885 to 1891.

Ohio's 13th congressional district: The 13th congressional district of Ohio is represented by Representative Tim Ryan, who defeated Republican Dr. Marisha Agana of Warren on November 6, 2012.  Due to reapportionment following the 2010 United States Census, Ohio lost its 17th and 18th congressional districts, necessitating redrawing of district lines.  Following the 2012 elections, the 13th district changed to take in much of the territory in the current 17th district, including the city of Youngstown and areas east of Akron.

State of the Black Union: The State of the Black Union was an annual event in the United States to consider issues of particular relevance in the African American community, featuring prominent speakers such as John Conyers, Jesse Jackson, and Al Sharpton.

Hansen Clarke: Hansen Clarke (born March 2, 1957) is an American politician and former U.S. Congressman and Representative-elect in the 14th Congressional District of Michigan.  A Democrat, he was the U.S. Representative for Michigan 's 13th congressional district from 2011 to 2013.  Prior to his election to Congress, he had been a member of the Michigan House of Representatives from 1991 through 1992 and from 1999 through 2002, and had represented the 1st District in the Michigan Senate from 2003 to 2011.  Clarke was also the first U.S. Congressman of Bangladeshi descent.

Massachusetts's 5th congressional district: Massachusetts' 5th congressional district is a congressional district in eastern Massachusetts.  The district is represented by Katherine Clark.  Massachusetts congressional redistricting after the 2010 census has changed the borders of the district starting with the elections of 2012, with the new 3rd district largely taking the place of the old 5th.  The 5th district had covered many of the communities represented in the old 7th district.  As of 2010, the population of the 5th congressional district was 727,515.  On July 15, 2013, Ed Markey resigned from the seat to become the junior Senator from Massachusetts.  On December 10, 2013, Democrat Katherine Clark won a special election to fill the seat for the remainder of the 113th Congress.  She was sworn into office on December 12, 2013.

Dick Muri: Richard Walter "Dick" Muri (born November 30, 1953) is an American politician of the Republican Party.  He is a member of the Washington House of Representatives, representing the 28th legislative district.  Muri was appointed to the Washington State House of Representatives following (now former) State Representative Steve O'Ban's appointment to the Washington State Senate after State Senator Mike Carrell's death.  From 2003 to 2012, he served as a Republican member of the Pierce County Council, representing the 6th District.  In 2010, he ran as a Republican candidate for U.S. Congress in Washington's 9th congressional district against incumbent Democratic Congressman Adam Smith, eventually losing to Smith by nearly 10 points.  In 2012, he again ran, this time in Washington's 10th congressional district against Denny Heck, losing by 17 points.

Supporting paragraphs: State of the Black Union John Conyers
Answer: John Conyers