The event will be hosted by Miriam Adelson, a partial owner of the NBA’s Dallas Mavericks and widow of billionaire casino businessman Sheldon Adelson, who was one of the Republican Party’s largest donors, The AP said.

Oprah Winfrey hosted a campaign livestream for Kamala Harris, where Harris addressed the nation ahead of the upcoming November presidential election.

Vice President Kamala Harris spoke off the cuff, as guests included a teenager shot at her school and the family of a woman in Georgia who died as a result of the state’s abortion ban.