Graham–Cassidy was also co-sponsored by the Senator who was elected to the open seat in Nevada in what year?
Dean Heller Dean Arthur Heller (born May 10, 1960) is the senior United States Senator from Nevada and a member of the Republican Party. He was elected in Nevada to that state's open U.S. Senate seat in 2012.
Claire McCaskill Claire Conner McCaskill ( ; born July 24, 1953) is an American politician and member of the Democratic Party who serves as the senior United States Senator from Missouri. She is the first female U.S. Senator elected in Missouri in her own right.