Final answer:
At the 1988 Democratic Convention, Jesse Jackson gave a non-nominee speech with the message to 'Keep Hope Alive,' focusing on African American issues and his progressive platform, even though Michael Dukakis was the nominee.
Step-by-step explanation:
The 1988 Democratic Convention included a non-nominee speech by Jesse Jackson that was themed “Keep Hope Alive.” Jackson, who had ran a campaign that emphasized the needs of workers and the implementation of progressive policies, delivered this speech despite not securing the nomination, which went to Michael Dukakis.
Jackson's speech highlighted issues important to African Americans and worked to ensure that their interests remained at the forefront within the Democratic Party. Despite the controversy and challenges he faced during the campaign, Jackson's call to “Keep Hope Alive” resonated with many, especially within the “Rainbow Coalition” of his supporters—comprising minorities, the working class, and progressives.
Although he did not become the nominee, his continued advocacy at the convention exemplified the role a non-nominee could play in influencing the party's platform and the national conversation.