Each shade represents a 10% difference in the vote margin.
<a href="//commons.wikimedia.org/wiki/User:Fluffy89502" title="User:Fluffy89502">Fluffy89502</a>
<span class="int-own-work" lang="en">Own work</span> County information provided by the <a rel="nofollow" class="external text" href="https://www.sos.ca.gov/elections/prior-elections/statewide-election-results/presidential-general-election-november-4-2008/statement-vote/">California Secretary of State</a>.