Only a quarter of California adults say they would definitely get a vaccine against COVID-19 if one were available today, a new survey found, an early warning of what could be problems in stemming the pandemic that already has killed more than 17,000 in the state. Black Americans have been the group least supportive of Trump, which could help to explain why so many are unwilling to accept his assurances about a vaccine. A September survey by UC Berkeley's Institute of Governmental Studies found that just 11% of likely Black voters in California backed Trump over Democrat Joe Biden, the lowest of any racial group.