Except with cloning the other twin would be a different age as with current tech the clone is back to being a baby. You’d need rapid growth tech and mind transfer tech to at least make the clone have the same age, memories and personality, although that would most likely introduce other differences.
He didn’t plan on spending 44B. The plan was to manipulatie stock price with pretending to buy, but Twitter management saw that one coming and let him sign a document for 44B that the rich idiot didn’t read.
So when the “I changed my mind” phase of his master plan started, Twitter pulled out the document and forced him to cough up the 44B. So yeah, now he pretends it was the plan all along.