Orrin Hatch of Utah is a Republican Senator who has served in the United States Senate since 1977. He is the longest-serving Republican Senator in U.S. history and is currently the President Pro Tempore of the Senate. He is known for his conservative views on social issues, such as abortion and same-sex marriage, and his support for free trade and tax reform. He has also been a strong advocate for religious freedom and has sponsored legislation to protect religious expression in public schools.