Will Rogers lightens up FDR campaign event in 1932

The speaker, Governor Roosevelt, is restricted from discussing politics at a stadium dedicated to art and sports. He presents himself as a neighbor rather than a candidate. The speech's introduction is critiqued for lacking eloquence. Roosevelt distinguishes between his roles as a candidate and a potential president, emphasizing his commitment to doing right by the people.

What does Roosevelt imply about his role as a candidate versus as President?

What does Roosevelt mean by 'wasting no artoria on a prospect'?