Malcolm John Baker 
Which Is the Clone [EPUB ebook] 

He settles down in his bunk bed, and he enters that state before sleep overcomes. Suddenly, he is wide awake again, and in front of him is a hologram of his father. Tall, much taller than Julian, remembered him and with broader shoulders. His face is drawn, much older than Julian had remembered him. He said nothing; at first, he just stared as though he thought what to say, but ghosts can’t think, can they? Thought Julian.
“Well, there you are, what have you come to? I had such plans for you and your brother. One of you is a clone of me; you were meant to be President of the United States, not a dictator. Robert is now dead, and you will soon be dead to the world.”