In July 1959 President Eisenhower sent Nixon to the Soviet Union for the opening of the American National Exhibition in Moscow. On July 24, Nixon was touring the exhibits with Soviet First Secretary and Premier Nikita Khrushchev when the two stopped at a model of an American kitchen and engaged in an impromptu exchange about the merits of capitalism versus communism that became known as the "Kitchen Debate". 1960 presidential campaign In 1960 Nixon launched his first campaign for President of the United States. He faced little opposition in the Republican primaries and chose former Massachusetts Senator Henry Cabot Lodge Jr. as his running mate. His Democratic opponent was John F. Kennedy and the race remained close for the duration. Nixon campaigned on his experience, but Kennedy called for new blood and claimed the Eisenhower–Nixon administration had allowed the Soviet Union to overtake the U.S. in ballistic missiles (the "missile gap"). While Kennedy faced issues about his Catholicism, Nixon remained a divisive figure to some. Televised presidential debates made their debut as a political medium during the campaign. In the first of four such debates, Nixon appeared pale, with a five o'clock shadow, in contrast to the photogenic Kennedy. Nixon's performance in the debate was perceived to be mediocre in the visual medium of television, though many people listening on the radio thought Nixon had won. Nixon narrowly lost the election, with Kennedy winning the popular vote by only 112,827 votes (0.2 percent). There were charges of voter fraud in Texas and Illinois, both states won by Kennedy. Nixon refused to consider contesting the election, feeling a lengthy controversy would diminish the United States in the eyes of the world and that the uncertainty would hurt U.S. interests. At the end of his term of office as vice president in January 1961, Nixon and his family returned to California, where he practiced law and wrote a bestselling book, Six Crises, which included coverage of the Hiss case, Eisenhower's heart attack, and the Fund Crisis, which had been resolved by the Checkers speech. 1962 California gubernatorial campaign Local and national Republican leaders encouraged Nixon to challenge incumbent Pat Brown for Governor of California in the 1962 gubernatorial election. Despite initial reluctance, Nixon entered the race. The campaign was clouded by public suspicion that Nixon viewed the office as a stepping stone for another presidential run, some opposition from the far-right of