FDR Inauguration Ceremony Oath Taking

The transcript covers Franklin Delano Roosevelt's solemn pledge during his inauguration, where he swears to faithfully execute the office of President of the United States and protect the Constitution. It also introduces the anticipation of his inaugural address, highlighting the careful selection of words to address the nation and the world during challenging times.

What is the significance of the phrase 'So help me God' in the context of the oath?

What is the atmosphere described during the President's inaugural address?