Subcommittee on the Investigation of Loyalty of State Department Employees more commonly referred to as the Tydings Committee, was a subcommittee authorized by the 81st Congress(1950), to look into charges by Joseph R. McCarthy that he had a list of 205 names of individuals known by the Secretary of State to be members of the Communist Party of the United States of America(CPUSA) who were still working in the State Department. Senator Millard E. Tydings of Maryland chaired the subcommittee. The Tydings Committee held hearings from February to July of 1950. EarlBrowder, General Secretary of the Communist Party of the United States (CPUSA), testified that the China policy of the Communist party, toward the end of 1942, "were in fact adopted by the StateDepartment."
Of the 110 names McCarthy gave to the Tydings subcommittee, 62 were at the time employed by the State Department. The Tydings Committee cleared all the personal, but within one year the StateDepartment's Loyalty Security Board instigated proceedings against 49 of the 62. By the end of 1954, 81 of those on McCarthy’s list had either resigned or been dismissed from the government.
Fromits beginning, the Tydings Committee was marked by partisan infighting. Its final report, written by the Democratic majority, concluded that the individuals on McCarthy's list were neither Communistsnor pro-communist, and said the State Department had an effective security program. Tydings labeled McCarthy's charges a "fraud and a hoax," and said that the result of McCarthy's actions was to"confuse and divide the American people to a degree far beyond the hopes of the Communists themselves." Republicans responded in kind, with William Jenner stating that Tydings was guilty of "the mostbrazen whitewash of treasonable conspiracy in our history." The full Senate voted three times on whether to accept the report, and each time the voting was precisely divided along party lines.