Who is The President from The Pelican Brief and what is their importance?

Never named, the President is strikingly handsome, speaks with a soothing baritone, has a forehead that wrinkles with profound shows of feigned emotion. He practices putting in the Oval Office, changes clothes continually, and likes his brown cardigan when it becomes clear the public is attracted to the grandfatherly look. He has thought about taking a mistress when "The Queen" is traveling, but feels too old, tired, and Republican. Not a details person, the President leaves those to Fletcher Coal, his Chief-of-Staff, whose energy and perfect recall he resents and mentally likens to Hitler.