Elon Musk has endorsed former President Donald Trump for re-election and gun laws.Many of Musk's companies depend largely on federal approvals, subsidies, or contracts.If Trump returns to power, Musk could benefit from 'installing key personnel within the public administration.'Trump has incorporated some of Musk's policy proposals into his campaign.Under Trump, fewer regulations could give Musk's companies 'more freedom to develop advanced technologies'.For SpaceX, a Trump presidency may help the company procure large contracts with the Department of Defense.It's unclear what a Harris administration would mean for Musk and his business empire.Harris has proposed raising the corporate tax rate from 21% to 28%, which could impact companies like Musk's.Musk may align with Trump to secure government support no matter who wins in November.Musk's risky strategy could pay off, but he's banking on a president who'll repay Musk for his loyalty.