Question: When does the Representative of Maryland's 6th congressional district plan to run for presidency?

Context paragraphs:
Karen Handel: Karen Christine Handel (née Walker; born April 18, 1962) is an American businesswoman, politician, and member of the United States House of Representatives for Georgia's 6th congressional district.  In 2017, she became the first Republican woman to be elected to the U.S. Congress from Georgia after defeating Democratic candidate Jon Ossoff on June 20 in the 2017 special election to fill the vacancy in Georgia's 6th congressional district in the most expensive congressional race in American history.

George H. Christopher: George Henry Christopher (December 9, 1888 – January 23, 1959) was a Democratic Party representative from Missouri's 6th congressional district from January 3, 1949 to January 3, 1951 and from the Missouri's 4th congressional district from January 3, 1955 until his death January 23, 1959.

Rick Nolan: Richard Michael Nolan (born December 17, 1943) is an American politician and member of the Minnesota Democratic–Farmer–Labor Party who has been the U.S. Representative for Minnesota's 8th congressional district since 2013 and previously served as the U.S. Representative for Minnesota's 6th congressional district from 1975 to 1981.

John Delaney (Maryland politician): John Kevin Delaney (born April 16, 1963) is an American politician and businessman who has been the United States Representative for Maryland's 6th congressional district since 2013 and is running for President of the United States in 2020.  The district, the state's second-largest, includes nearly the entire western portion of the state, but the bulk of its vote is cast in the outer suburbs of Washington, D.C. He is a member of the Democratic Party.

Maryland's 6th congressional district: Maryland's 6th congressional district elects a representative to the United States House of Representatives from the northwest part of the state.  Today the district comprises all of Garrett, Allegany, and Washington counties as well as portions of Montgomery and Frederick counties.  The seat is currently represented by John Delaney (D).

Goodloe Byron: Goodloe Edgar Byron (June 22, 1929 – October 11, 1978), a Democrat, was a U.S. Congressman who represented the 6th congressional district of Maryland from January 3, 1971, until his death from a heart attack on October 11, 1978.  He was replaced as 6th district representative by his widow, Beverly Byron, in 1979.

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.

David A. De Armond: David Albaugh De Armond (March 18, 1844 – November 23, 1909) was a Democratic Representative representing Missouri's 12th congressional district from March 4, 1891 until March 3, 1893, and then Missouri's 6th congressional district from March 4, 1893 until dying in office in 1909.

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.

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.

Supporting paragraphs: Maryland's 6th congressional district John Delaney (Maryland politician)
Answer: 2020