Tesla CEO Elon Musk's tweets have tended to impact the price movement of cryptocurrencies. Following his comments in January, dogecoin's value grew by about 216% following his remarks, and at one point in May, the entire crypto sector lost nearly $1 trillion. What is the extent of his influence on the crypto markets? CoinDesk's Emily Parker, "Dogecoin Millionaire" Glauber Contessoto, and financial journalist Jay Derenthal weigh in.