The answer is: to act as a ceremonial role within the Senate.
The phrase 'Pro Tempore' is a latin language with the meaning of 'for the time being'. President pro tempore of the senate only elected as a ceremonial role when the actual presiding officer of the senates is unable to attend the meeting/conference.
It would be "Hitler" and "Mussolini" who were the two men who <span>headed the Axis powers of Germany and Italy in World War II (respectively, with Hitler being in charge of Germany). </span>
1. Humongous
2. Large
3. Huge