Rupert is a long-serving Representative from Arizona, having been born in Tucson, Arizona, on February 19, 1948. He attended Sunnyside High School and later graduated from the University of Arizona with a Bachelor's degree in 1986. Rupert's political career began at the local level when he served on the Tucson Unified School Board from 1974 to 1986, followed by a term as a Pima County Supervisor from 1989 to 2002. He was first elected to the U.S. House of Representatives as a Democrat in 2003 and continued serving until his death on March 13, 2025. Notably, Rupert held a leadership role as the chair of the House Committee on Natural Resources during the 116th and 117th Congresses.

In terms of legislative activity, Rupert was actively involved in several significant bills throughout his tenure. He co-sponsored the Public Land Renewable Energy Development Act of 2023 (HB178), which aims to facilitate the development of geothermal, solar, and wind energy on public lands. The bill requires the Department of the Interior to designate priority areas for renewable energy projects, ensuring that such developments accommodate conservation goals while providing economic opportunities. This legislation highlights Rupert's commitment to promoting renewable energy sources and environmental conservation.

Rupert was also involved with multiple other notable initiatives, including the Protecting Americans from Reckless Gun Dealers Act of 2023 (HB4966), focusing on gun control measures, and the Kimberly Vaughan Firearm Safe Storage Act (HB4965), which addresses safe storage practices for firearms. His support for these measures indicates a focus on public safety and responsible gun ownership.

Similar themes of public welfare and safety are reflected in other legislation he sponsored, including the End Solitary Confinement Act (HB4972) and the Cancer Care Planning and Communications Act (HB5183). Both pieces of legislation demonstrate Rupert's dedication to social justice issues, particularly regarding the treatment of individuals within the criminal justice system and access to healthcare.

In terms of political ideology, Rupert's legislative priorities suggest a center-left alignment, particularly in issues related to environmental conservation, gun control, and public health. His consistent support for legislation that aims to improve community safety and environmental protections, alongside advocating for renewable energy solutions, aligns with Democratic Party values focused on progressive governance and social responsibility.

While Rupert’s political career was primarily defined by his legislative achievements, he also had personal ties that may be of interest to political observers. However, specific details about his family or personal business endeavors were not extensively documented in available resources.

Overall, Rupert's biography and legislative record reflect his commitment to addressing critical issues facing his constituents and highlight a dedicated public service career that spanned over two decades in the U.S. House of Representatives.