To give voters a choice in November, 25-year-old Francis X. Stanton is challenging incumbent Democrat Representative John Lawn in the 10th Middlesex House District, which covers parts of Watertown, Waltham, and Newton.

Stanton, a Waltham Republican, said he believes Beacon Hill is “broken,” and that the state House of Representatives could benefit from a diversity of ideas and opinions to challenge the status quo.