Party, as it marked the first U.S. Senate election where it fielded a candidate. Patton lost by over 50% to Talmadge. Hawaii Idaho Illinois Incumbent Republican and Minority Leader Everett Dirksen won re-election to his fourth term over William G. Clark (D), the Illinois Attorney General. Indiana Iowa Four-term Republican Bourke B. Hickenlooper retired. Two-term Democratic Governor of Iowa Harold Hughes was elected senator in a close race against Republican state senator David M. Stanley. Kansas Kentucky Louisiana Maryland Missouri Nevada New Hampshire New York Incumbent Republican Jacob K. Javits won against Democratic challenger Paul O'Dwyer and Conservative Party challenger James L. Buckley in a three-way election. While Javits did not face any challengers for the Republican nomination, he did face a minor one when seeking the Liberal Party of New York's nomination. North Carolina The general election was fought between the Democratic incumbent Sam Ervin and the Republican nominee Robert Somers. Ervin won re-election to a third full term, with over 60% of the vote. The first round of the Primary Election was held on May 4, 1968. The runoff for the Republican Party candidates took place on June 1. North Dakota North Dakota Republican Milton Young, sought and received re-election to his fifth term, defeating North Dakota Democratic-NPL Party candidate Herschel Lashkowitz, the mayor of Fargo, North Dakota since 1954. Only Young filed as a Republican, and the endorsed Democratic candidate was Herschel Lashkowitz of Fargo, North Dakota, who was serving as the mayor of the city since 1954. Young and Lashkowitz won the primary elections for their respective parties. One independent candidate, Duane Mutch of Larimore, North Dakota, also filed before the deadline. Mutch was later a state senator for the North Dakota Republican Party in the North Dakota Senate from 1959 to 2006 for District 19. He ran as an independent when he did not receive his party's nomination. Ohio Oklahoma Incumbent Democratic U.S. senator Mike Monroney was running for re-election to a fourth term, but was defeated by Republican former Governor Henry Bellmon. Oregon Incumbent Democrat Wayne Morse was seeking a fifth term, but narrowly lost re-election to 36-year-old Republican State Representative Bob Packwood race. The Democratic primary was held May 28, 1968. Morse defeated former Representative Robert B. Duncan, former U.S. Congressman from Oregon's 4th congressional district (1963–1967), and Phil McAlmond, millionaire and former aide to opponent Robert B. Duncan. Pennsylvania Incumbent Democrat Joseph