 Press the country from the Oval Office regarding the attempted assassination, not only of a former president, but a candidate for president, his fierce opponent. Earlier today, President Biden was briefed in the Situation Room and then went in front of reporters calling for political violence. And in the next hour, we're going to dive deep into the investigation into the attempted assassination of former President Trump. But first, we'll hear from President Biden. Let's begin tonight with ABC News White House correspondent Karen Travers. Karen, good evening.