A glimmer of hope may be on the horizon for a ruthless cancer that former Sen. Ben Sasse (R-Neb.) once called a “definite death sentence.” An experimental treatment from Revolution Medicines helped patients with an aggressive form of pancreatic cancer live twice as long as those on chemotherapy alone in a late-stage trial . But for Sasse, 54, taking the “ nasty drug ” hasn’t always been easy. “It causes crazy stuff like my body can’t grow skin and so I bleed all out of a whole bunch of parts of