Frida Ghitis : President once considered leader of free world , a key influence in world . She says it 's less so now , but world riveted on presidential campaign and its wide impact . She says her popularity had fallen globally but is up again , now that Romney is opponent . Still , it 's worth pondering whether if in the next election , American voters will crown the most powerful man in the world , the man who will lead the world 's democracies and inspire those who aspire to freedom . Ghitis : World is attentive , because the president is most powerful person on earth .
Frida Ghitis : President once considered leader of free world , a key influence in world . She says it 's less so now , but world riveted on presidential campaign and its wide impact . She says her popularity had fallen globally but is up again , now that Romney is opponent . Ghitis : World is attentive , because the president is most powerful person on earth .