Trump doesn't need Kimmel's support because he's got the Uihlein's financial backing.
Dick Uihlein, Fancelli, and Diane Hendricks funded the Jan 6 coup attempt.
https://www.forbes.com/sites/tylerroush/2024/03/09/trump-scores-new-billionaire-donors-as-campaign-seeks-badly-needed-cash-report-says/