FORT MADISON, Iowa – The Iowa caucuses could feature an attack of the “zombie” candidates. As some Democrats prepare for Monday's contest, they say they're planning to side with candidates who have been out of the race for weeks, even months. By caucusing for Sens. Kamala Harris of California and Cory Booker of New Jersey, voters say they want to establish a record that those who bowed out early did indeed have supporters. “I really still feel that for me, Cory Booker’s the right person to be the president," said Bryce Smith, the Dallas County Democratic Party chairman who had endorsed Booker and was organizing for him in his precinct.