 They are some of the people who had hoped to be on top of the ticket. Tonight, a surprise addition to the schedule. His former primary rival, Nikki Haley. She has been invited to address the convention. As Trump works to build support, this week he also reached out to independent candidate Robert Kennedy Jr., asking for his endorsement. A member of Kennedy's team recording video of the call, then Kennedy's son posting it on social media. ABC's Rachel Scott in Milwaukee. President Biden is looking for support among black voters.