Final answer:
President Bill Clinton showed support for the American people during the tragedy by comforting the families of the victims and emphasizing the importance of speaking up against violence.
Step-by-step explanation:
During a national tragedy, President Bill Clinton showed support for the American people through his speech following the bombing of the Oklahoma City Federal Building in 1995. He comforted and encouraged the families of the victims and emphasized the importance of speaking up against violence and responding to evil acts with good acts. Clinton's speech helped to unite the population and inspire them to rally around the president during a time of crisis.