Caption: Sen. Estes Kefauver (D-Tenn), left, raises his hand as he takes an oath swearing signatures on petitions entering his name in the March 20 minnesota presidentail primary election are valid. Secretary of State Joseph Donovan is administering the oath. The primary will be the nation's first test of strength between Kefauver and Adlai Stevenson, who filed three weeks ago.
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