California Primary History
Presidential primary election results from 2008 to 2024
2024
GOP Primary
Donald Trump79.3%
Nikki Haley17.4%
2020
Dem Primary
Bernie Sanders36.0%
Joe Biden27.9%
2016
GOP Primary
Uncontested
Dem Primary
Hillary Clinton53.1%
Bernie Sanders46.0%
2012
Dem Primary
Barack Obama100.0%
Uncontested
2008
Dem Primary
Hillary Clinton51.5%
Barack Obama43.2%