In 1959 (at the age of 79), although he was reelected as a member of the House of Councilors from the nationwide constituency, he resigned from the Diet in December of the same year, taking the responsibility for highly-suspected election violations by campaigners for his second son Kinjiro AYUKAWA who was also elected in the same election.
1959年（昭和34年、79歳）、全国区より参議院に再度当選したが、同時に当選した次男鮎川金次郎派運動員の選挙違反容疑が高まり、12月に責任をとり議員辞職。