If Trump does not handle it/her with kid gloves, she will cry "Bully!" and of course that will stick like glue and be replayed on the news a million times.
I think Lazio was going to lose anyway, but he didn’t help himself by looking like a deer in the headlights when he was getting hit for walking across a stage. He could have defended himself better, but he did the usual GOP thing of rolling over and playing dead when under a false attack.