Most of us have seen the famous images of US presidents descending from Air Force One via the 18 foot tall staircase. Recently however, these images have become less common. This is because President Biden has been opting to use another shorter set of stairs to enter and exit Air Force One. Because of this, media sources and the general public have been criticizing the president and calling him weak. How could a simple staircase have such a great impact on a president’s public image? Well, the use of the same staircase once led to the outbreak of an international incident.   In 2016, President Obama was en route to…