Tesla shares drop 7% in premarket trading after Elon Musk says he is launching a political party

Tesla shares fell in premarket trade on Monday after CEO Elon Musk announced plans to form a new political party. The stock was down 7.13% by 4:27 a.m. E.T. Musk said over the weekend that the party would be called the "America Party" and could focus "on just 2 or 3 Senate seats and 8 to 10 House…