What challenge do presidents in particular face when persuading an audience?

The answer is "they must appeal to several different groups. "

The President of the United States is the head of state and head of legislature of the United States of America. The president coordinates the official part of the national government and is the president of the United States Armed Forces.  

Presidents confront challenges ordinary and are examined for each choice they make. They should be a pioneer and show certainty for the general population. They need to settle on choices that can influence a huge number of individuals.

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.