Musk's super PAC is spending $2.10 million to support Republican candidates in swing districts across the country, which could help the world's richest man build a coalition of allies in Congress. The committee's support could be key to whether Republicans retain their majority in the House of Representatives after November's election. A new federal filing details the latest spending, the first major effort by the super PAC Musk established earlier this year to influence elections outside the presidential race.