Question: What occupation did the Senator after whom the Hatch Act of 1939 was named have after leaving the senate ?

Context paragraphs:
Carl Hatch: Carl Atwood Hatch (November 27, 1889September 15, 1963) was a Democratic Party politician from New Mexico who represented New Mexico in the United States Senate from 1933 until 1949, and was later a United States federal judge.

United States Office of Special Counsel: The United States Office of Special Counsel (OSC) is a permanent independent federal investigative and prosecutorial agency whose basic legislative authority comes from four federal statutes: the Civil Service Reform Act, the Whistleblower Protection Act, the Hatch Act, and the Uniformed Services Employment and Reemployment Rights Act (USERRA).  OSC's primary mission is the safeguarding of the merit system in federal employment by protecting employees and applicants from prohibited personnel practices (PPPs), especially reprisal for "whistleblowing."  The agency also operates a secure channel for federal whistleblower disclosures of violations of law, rule, or regulation; gross mismanagement; gross waste of funds; abuse of authority; and substantial and specific danger to public health and safety.  In addition, OSC issues advice on the Hatch Act and enforces its restrictions on partisan political activity by government employees.  Finally, OSC protects the civilian employment and reemployment rights of military service members under USERRA.  OSC has around 120 staff, and the Special Counsel is an ex officio member of Council of Inspectors General on Integrity and Efficiency (CIGIE), an association of Inspectors General charged with the regulation of good governance within the federal government.

Hatch Act of 1939: The Hatch Act of 1939, officially An Act to Prevent Pernicious Political Activities, is a United States federal law whose main provision prohibits employees in the executive branch of the federal government, except the president, vice-president, and certain designated high-level officials of that branch, from engaging in some forms of political activity.  It went into law on August 2, 1939.  The law was named for Senator Carl Hatch of New Mexico.  It was most recently amended in 2012.

Formula funds: Formula funds refer to the Federal dollars distributed to the land grant colleges of agriculture through formulas found in the Hatch Act (7 U.S.C. 361a et seq.), the Smith–Lever Act (7 U.S.C. 341 et seq.), the McIntire–Stennis Act (16 U.S.C. 582a et seq.), and the Evans–Allen Act (7 U.S.C. 3222) for (1) agricultural research at the state agricultural experiment stations, (2) Extension Service programs, (3) forestry research at the land grant colleges of agriculture, and (4) research at the 1890 institutions, respectively.

List of United States Senators from Utah: Utah was admitted to the Union on January 4, 1896, and elects senators to Class 1 and Class 3.  Its current senators are Republicans Mike Lee and Orrin Hatch.  In office since 1977, Hatch is currently the longest-serving Senator in Utah history, the longest-serving Republican Senator and the second most senior Senator overall, after Vermont's Patrick Leahy.  Senator Hatch has also been the President pro tempore of the United States Senate since 2015.

United Federal Workers of America: The United Federal Workers of America (UFWA) was an American labor union representing federal government employees which existed from 1937 to 1946.  It was the first union with this jurisdiction established by the Congress of Industrial Organizations (a national labor federation).  In 1946 it merged with other unions to form the influential United Public Workers of America.  The union challenged the constitutionality of the Hatch Act of 1939, which led to the Supreme Court decision in "United Public Workers v. Mitchell", 330 U.S. 75 (1947).

William H. Hatch: William Henry Hatch (September 11, 1833 – December 23, 1896) was a U.S. Representative from Missouri.  He was the namesake of the Hatch Act of 1887, which established state agricultural experiment stations for the land-grant colleges.  Hatch is also the namesake of Hatch Hall, a Residence Hall at the University of Missouri.

Hatch Act of 1887: The Hatch Act of 1887 (ch.  314, 24 Stat.  440 , enacted 1887-03-02, et seq.) gave federal funds, initially of $15,000 each, to state land-grant colleges in order to create a series of agricultural experiment stations, as well as pass along new information, especially in the areas of soil minerals and plant growth.  The bill was named for Congressman William Hatch, who chaired the House Committee of Agriculture at the time the bill was introduced.  State agricultural stations created under this act were usually connected with those land-grant state colleges and universities founded under the Morrill Act of 1862, with few exceptions.

United Public Workers v. Mitchell: United Public Workers v. Mitchell, 330 U.S. 75 (1947), is a 4-to-3 ruling by the United States Supreme Court which held that the Hatch Act of 1939, as amended in 1940, does not violate the First, Fifth, Ninth, or Tenth amendments to U.S. Constitution.

United Public Workers of America: The United Public Workers of America (1946–1952) was an American labor union representing federal, state, county, and local government employees.  The union challenged the constitutionality of the Hatch Act of 1939, which prohibited federal executive branch employees from engaging in politics.  In "United Public Workers of America v. Mitchell", 330 U.S. 75 (1947), the Supreme Court of the United States upheld the Hatch Act, finding that its infringement on the Constitutional rights was outweighed by the need to end political corruption.  The union's leadership was Communist, and in a famous purge the union was ejected from its parent trade union federation, the Congress of Industrial Organizations, in 1950.

Supporting paragraphs: Hatch Act of 1939 Carl Hatch
Answer: United States federal judge.