Elon Musk's net worth has grown by $135 billion since Donald Trump's election victory in November.Tesla stock has surged 42% since the election as Musk sets an ambitious plan for the electric vehicle maker.Dogecoin, Musk's favorite cryptocurrency, has surged 60% since the election, driven by his political ties.Musk's xAI, a competitor to OpenAI, is in talks to raise $10 billion at a $75 billion valuation.