In the '''midterm election of 1958''', the [[Democratic Party]] gained 49 seats in the [[U.S. House of Representatives]] and 16 seats in the [[U.S. Senate]] from the [[Republican Party]], cementing their majorities. Democrats also picked up six governorships and 686 state legislative seats. | In the '''midterm election of 1958''', the [[Democratic Party]] gained 49 seats in the [[U.S. House of Representatives]] and 16 seats in the [[U.S. Senate]] from the [[Republican Party]], cementing their majorities. Democrats also picked up six governorships and 686 state legislative seats. |