- Position: Missouri Senate, 26th district, 2011-present
- Other Elective Offices: Missouri House of Representatives, 98th district, 2003-2010. Served as Majority Whip.
- Party: Republican
- Home City: Washington, MO
- Birth Date and Place: June 19, 1965, New Britain, CT
- Family: Married: Julie Nieves; children: Alexandra, Moriah, Victor
- Education: Pacific High School, Franklin Co., MO, 1983
- Religion: Zone Pastor of the Living Bread International Church
- Military: U.S. Navy 1984-1994, serving as hospital corpsman and field medic.
- Occupation: Nieves Enterprises and Hwy 66 Auto Sales and substitute high school teacher
