Defeated in House. Results in friction with mining, cattle, and lumber interests in Idaho. Wins re-election by 2,450 votes over Jack Hawley, a Boise attorney. First Democratic Senator in Idaho elected to serve two consecutive terms. Fact-finding tour to the Far East.
Leads fight for speedy passage of Nuclear Test Ban Treaty.
Introduces resolution opposing aid to regime of Ngo Dinh Diem of South Vietnam. Begins voluntarily making public his personal accounts of income and assets-one of the first elected officials to do so. Endangered Wilderness Act passes. Becomes Chair of the Subcommittee on Indian Affairs. Plays pivotal role in passage of 1964 Civil Rights Act to strengthen voting rights and fair employment standards.