Answer:
According to the excerpt from the 1964 Democratic Party Platform, the issue that was important to the Democratic party in the 1964 election was: ending racial conflict.
Explanation:
The platform emphasizes the commitment to equal opportunity and treatment for all Americans regardless of race, creed, color, or national origin. It also denounces violence and lawlessness, advocating for the opposition of anarchy and the exposure of advocacy of hatred, which creates a clear and present danger of violence. These statements reflect a focus on addressing racial tensions and promoting civil rights during that time period.