In the US, we don't elect political parties (now famously "hollow"). And we don't elect the man, or the woman. Even in Congress, but especially as President, the job is far above the capability or judgment of one person, however old or young.
What we elect when we elect a person is that person's friends, who will become staff, advisors, appointees.
Whatever you think of the person, what matters is the people they will place around them. We choose not so much the puppet as the puppeteers.