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Senate roll call 427 · 81st Congress · Sep 12, 1950

S 4037. Protect the internal security of the U.S. Lucas amend. Removing registration feature from the bill and substituting detention provisions.

On Sep 12, 1950, the Senate voted 29–45 (S 4037). Result: failed. By party: Democrats 29–20, Republicans 2–36. It was a split vote: the parties took opposite sides, with some members crossing over. 22 members voted against their own party.

During the 81st Congress (1949–1950), Harry S. Truman was president, and Democrats held majorities in both the House and Senate.

Yes
29
No
45
Date
Sep 12, 1950

By party

  • Democrats29 yes · 20 no
  • Republicans2 yes · 36 no

Who broke with their party

How each senator voted: Yes

How each senator voted: No

Voted present

Other votes

From Voteview roll call records.

Cite or embed this page

Capitol Receipts, “S 4037. Protect the internal security of the…: Senate Vote, Sep 12…,” https://www.capitolreceipts.com/vote/81-S-427/s-4037-protect-the-internal-security-of-the-u (accessed 2026-10-17).

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