Bush has steadily refused to say one word about the issue.
Bush repeatedly refused to state whether he had ever used cocaine.
Reagan invited the other four candidates as well, but Bush refused to debate them, and eventually they left.
Bush refused to participate, which led to an impasse on the stage.
But Bush refused to talk to the other candidates, and sat on the stage waiting impatiently for the debate to begin.
Bush refused to answer questions about past marijuana use.
Mr. Bush and his lawyers refused to say if race could ever be a factor.
Mr. Bush refused to answer whether, under his plan, the government would protect individuals against any losses.
Perhaps most provocatively, why did Bush refuse to seek advice from his father?
Bush at first refused to sign the pledge, but in 1987 eventually acquiesced.