
Billionaire businessman and environmental activist Tom Steyer has officially launched his campaign for California governor, joining a crowded field of Democrats and Republicans aiming to succeed term-limited Gov. Gavin Newsom.
The 68-year-old Steyer is perhaps best known for his 2020 run for the Democratic presidential nomination, as well as for self-financing political efforts, including a campaign to impeach President Donald Trump during his first term in 2019.