King Votes Against D.C. Representation

It has been kicking around for years and it's now passed the House without Peter Kings vote.
H.R.1905: To provide for the treatment of the District of Columbia as a Congressional district for purposes of representation in the House of Representatives, and for other purposes will finally give the District of Columbia a vote in the House.
"SEC. 2. TREATMENT OF DISTRICT OF COLUMBIA AS CONGRESSIONAL DISTRICT.

(a) In General- Notwithstanding any other provision of law, the District of Columbia shall be considered a Congressional district for purposes of representation in the House of Representatives.

(b) Conforming Amendments Relating to Apportionment of Members of House of Representatives-

(1) INCLUSION OF SINGLE DISTRICT OF COLUMBIA MEMBER IN REAPPORTIONMENT OF MEMBERS AMONG STATES- Section 22 of the Act entitled `An Act to provide for the fifteenth and subsequent decennial censuses and to provide for apportionment of Representatives in Congress', approved June 28, 1929 (2 U.S.C. 2a), is amended by adding at the end the following new subsection:

`(d) This section shall apply with respect to the District of Columbia in the same manner as this section applies to a State, except that the District of Columbia may not receive more than one Member under any reapportionment of Members.'.

(2) CLARIFICATION OF DETERMINATION OF NUMBER OF PRESIDENTIAL ELECTORS ON BASIS OF 23RD AMENDMENT- Section 3 of title 3, United States Code, is amended by striking `come into office;' and inserting the following: `come into office (subject to the twenty-third article of amendment to the Constitution of the United States in the case of the District of Columbia);'.

Why are King and most all of the republicans opposed to DC having real representation?