Final answer:
President William Jefferson Clinton delivered the "Oklahoma Bombing Memorial Address" on April 23, 1995. His speech offered comfort to the nation and restored his public image, while also prompting a unified governmental response in terms of support for victims and increased funding for antiterrorism initiatives.
Step-by-step explanation:
The President who delivered the "Oklahoma Bombing Memorial Address" was President William Jefferson Clinton. The address was given on April 23, 1995, in response to the Oklahoma City Bombing, which happened on April 19, 1995. This bombing was the deadliest terrorist attack on American soil until the events of September 11, 2001, claiming the lives of 168 individuals. President Clinton's address served not only as a form of solace to the victims' families and to the nation but also restored his public image and encouraged bipartisan cooperation in the aftermath of the tragedy. The government's reaction included providing support to the victims and bolstered antiterrorism efforts to prevent future attacks.
The long-lasting impact of the Oklahoma City Bombing included the creation of an impromptu memorial, which transformed the streets into a sacred space for mourning. President Clinton’s handling of the situation underscored the idea that during national emergencies, presidential addresses can unify and inspire the population, leading to what is known as the 'rally 'round the flag' phenomenon, where a population facing threat unites behind their leader. This can result in a spike in presidential approval ratings as well.