Senator from Florida from 2001 to 2019. Prior to his senatorial career, Nelson served in the U. S. House of Representatives from 1979 to 1991 and as the Treasurer, Insurance Commissioner, and Fire Marshal of Florida from 1995 to 2001. Nelson's political career was marked by his focus on space exploration and environmental issues, earning him the nickname "Congressman Space. ". He was a staunch advocate for NASA and played a key role in shaping the nation's space policy, including authoring significant legislation. Additionally, Nelson was a vocal supporter of environmental protection and conservation efforts. He fought against offshore drilling and supported renewable energy sources to combat climate change. Nelson's environmental stance earned him recognition from various organizations, including being awarded the Audubon Medal, one of the highest honors in the field of conservation. Throughout his tenure, Nelson was known for his bipartisan approach and ability to work across party lines. He built a reputation as a legislator who prioritized the needs of his constituents and focused on finding practical solutions to public issues. Nelson's 2018 re-election campaign for the Senate seat was highly anticipated and closely watched, as it was one of the most expensive and competitive races of that year. Despite strong competition, he ultimately lost to his Republican opponent, Rick Scott, bringing an end to his tenure in the Senate. Overall, Bill Nelson is regarded as a dedicated public servant, with a deep commitment to his state and a legacy of advancing important issues such as space exploration and environmental protection.