Also Read: K-Pop Stans, TikTok Users Say They're Behind Low Turnout for Trump's RallyAs heard in the audio used in Cooper’s video, the Trump campaign expected hundreds of thousands of supporters to show up for the rally at BOK Center in Tulsa, originally scheduled for Juneteenth but changed to June 20th after Trump’s campaign was accused of selecting the date as a racist dog whistle. And Trump wasn’t alone.