later termed the Checkers speech, was heard by about 60 million Americans—including the largest television audience up to that point. Nixon emotionally defended himself, stating that the fund was not secret, nor had donors received special favors. He painted himself as a man of modest means (his wife had no mink coat; instead she wore a "respectable Republican cloth coat") and a patriot. The speech was remembered for the gift which Nixon had received, but which he would not give back: "a little cocker spaniel dog... sent all the way from Texas. And our little girl—Tricia, the 6-year-old—named it Checkers." The speech prompted a huge public outpouring of support for Nixon. Eisenhower decided to retain him on the ticket, which proved victorious in the November election. Eisenhower gave Nixon more responsibilities during his term than any previous vice president. Nixon attended Cabinet and National Security Council meetings and chaired them in Eisenhower's absence. A 1953 tour of the Far East succeeded in increasing local goodwill toward the United States, and gave Nixon an appreciation of the region as a potential industrial center. He visited Saigon and Hanoi in French Indochina. On his return to the United States at the end of 1953, Nixon increased the time he devoted to foreign relations. Biographer Irwin Gellman, who chronicled Nixon's congressional years, said of his vice presidency: Despite intense campaigning by Nixon, who reprised his strong attacks on the Democrats, the Republicans lost control of both houses of Congress in the 1954 elections. These losses caused Nixon to contemplate leaving politics once he had served out his term. On September 24, 1955, President Eisenhower suffered a heart attack and his condition was initially believed to be life-threatening. Eisenhower was unable to perform his duties for six weeks. The 25th Amendment to the United States Constitution had not yet been proposed, and the vice president had no formal power to act. Nonetheless, Nixon acted in Eisenhower's stead during this period, presiding over Cabinet meetings and ensuring that aides and Cabinet officers did not seek power. According to Nixon biographer Stephen Ambrose, Nixon had "earned the high praise he received for his conduct during the crisis ... he made no attempt to seize power". His spirits buoyed, Nixon sought a second term, but some of Eisenhower's aides aimed to displace him. In a December 1955 meeting, Eisenhower proposed that Nixon not run for reelection and