WASHINGTON (AP) - The trash talk is underway ahead of Monday's first showdown between Donald Trump and Hillary Clinton.
    
Trump asked supporters at a rally outside Philadelphia Thursday, "Where is Hillary today?"
    
Then he answered his own question: "They say she's practicing for the debate. Some people think she's sleeping."
    
Trump has long tried to cast Clinton as having weak stamina.
    
Clinton's camp has confirmed she is preparing for the debate and has no public events scheduled.
    
Asked earlier today if he's preparing, Trump suggested that his choice to campaign rather than huddle so far this week speaks for itself.