He claimed we can afford future Medicare costs if we raise taxes on the rich. He repeated the old half-truth about millionaires not paying as much in taxes as their secretaries. (In reality, the top 10 percent of earners pay nearly 70 percent of all income taxes, according to the I.R.S. People in the richest 1 percent pay 31 percent of their income to the federal government while the average worker pays less than 14 percent, according to the Congressional Budget Office.)