Task: Explanation
Input (English): Steven David Daines (born August 20, 1962) is an American businessman, entrepreneur, and the junior United States Senator from Montana. He was the United States Representative for Montana's at-large congressional district from 2013 to 2015. In the 2014 election, he won an open U.S. Senate seat, defeating Democrat Amanda Curtis. Question: Roy Browns running mate in the 2008 Montana gubernatorial election won his current senate seat by defeating what democrat? Answer: Amanda Curtis
Output (English):  In the 2014 election, he won an open U.S. Senate seat, defeating Democrat Amanda Curtis.