Sen. Amy Klobuchar revealed on Thursday that over the past several months she was diagnosed with early-stage breast cancer and underwent successful treatment to combat it. In a post on Medium, Klobuchar wrote that doctors diagnosed her with stage 1A cancer after a biopsy in the spring. After other tests, she underwent a lumpectomy to remove a tumor in her right breast. In May, she began radiation therapy. The Minnesota Democrat chairs the Senate Rules Committee and has become an influential voice in the Democratic Party after her 2020 presidential campaign. #amyklobuchar #cancersucks