The last telephone conversation between Bob Dole and Colin Powell had all the romance of a bad blind date. Ending months of silence between the men, Powell telephoned to congratulate the Kansas Senator in early April after Dole clinched the G.O.P. nomination. By careful arrangement, Dole had been warned to simply say thanks and under no circumstances mention the vice presidency. Dole obeyed the ground rules but asked the retired general, "Can I call you for advice on foreign policy now and then?" Sure, said Powell, anytime. And then he hung up. The whole thing lasted less than a minute.
Things...