Student or Learner
Following sentence is from the BBC newspaper article about one of the Quatar's 2022 World cup representative who was accused of buying 2022 World Cup.
"He [Warner] sent me an email asking if I want that [Bin Hammam to run for Fifa president], he said that I should ask Bin Hammam to pull out," Valcke added.
What does pull out mean in this context?
It means withdraw as a candidate for the presidency.