The chairman of the House Select Committee on Narcotics Abuse and Control said he will urge President Bush to promptly call a western hemispheric drug summit. Rep. Charles B. Rangel (D-N.Y.) rejected as unacceptable federal drug czar William J. Bennett’s suggestion that the summit not be held until Bennett first draws up a national drug strategy. That plan, due in September, is to address education, treatment, law enforcement and interdiction. Rangel has long complained that the United States has no coordinated foreign policy on drugs. “We should hold the summit now. Leaders of South America are pleading for one,” Rangel said.