Question: Who was appointed the seat left vacant by a former Las Vegas, Nevada politician in the United States Senate Election in Nevada 2012?
Sentence (from "United States Senate election in Nevada, 2012"): The 2012 United States Senate election in Nevada was held on Tuesday, November 6, 2012, alongside 33 other elections to the United States Senate in other states, as well as elections to the United States House of Representatives, and the 2012 United States presidential election.
Relevant evidence: No