Eisenhower, who had first become famous for his military leadership in World War II, remained widely popular. A heart attack in 1955 provoked speculation that he would not seek a second term, but his health recovered and he faced no opposition at the 1956 Republican National Convention. Stevenson remained popular with a core of liberal Democrats, but held no office and had no real base. He defeated New York Governor W. Averell Harriman and several other candidates on the first presidential ballot of the 1956 Democratic National Convention. Stevenson called for a significant increase in government spending on social programs and a decrease in military spending.