Republican US presidential candidate Senator John McCain listens to questions during a news conference at the Miami's Children Hospital in Miami

 
Republican US presidential candidate Senator John McCain listens to questions during a news conference at the Miami
Republican US presidential candidate Senator John McCain listens to questions during a news conference at the Miami's Children Hospital in Miami, Florida April 28, 2008. REUTERS/Carlos Barria (UNITED STATES) US PRESIDENTIAL ELECTION CAMPAIGN 2008 (USA)