Published February 22, 2016 4:57pm EST | Updated February 22, 2016 5:04pm EST

Sen. McCaskill Says She Has Breast Cancer

Sen. Claire McCaskill said Monday she has been diagnosed with breast cancer. McCaskill, a Missouri Democrat, said in a statement that her prognosis is good "and I expect a full recovery." The senator said she would be in St. Louis for the next three weeks for treatment but that her staff will continue to assist constituents.