Elon Musk's super political action committee (PAC) is spending $2.1 million to support Republican candidates in swing districts across the country, a move that could help the world's richest man build a bloc of allies in the U.S. Congress. The PAC's support could be crucial in determining whether Republicans retain control of the House of Representatives after the November elections. A new federal disclosure filing details the latest spending, marking the first major effort by the super PAC, which Musk formed earlier this year, to influence elections outside of a presidential race. (Golden Ten)