( CNN ) -- Many thought Raul still held the top spot in Santiago 's Communist Party Congress . Castro stepped down as president of Cuba in Tuesday due to health problems . Castro 's younger brother , Castro , is expected to become party president .
Many thought Raul still held the top spot in Santiago 's Communist Party Congress . Castro stepped down as president of Cuba in Tuesday due to health problems . Castro 's younger brother , Castro , is expected to become party president .