Elon Musk’s companies have billions in federal contracts but also deep ties to China. Trump said it makes him ‘susceptible’ as a businessman 

• Elon Musk’s Friday visit to the Pentagon drew criticism and highlighted his companies’ links to both the federal government and China. The billionaire’s rocket company SpaceX has $22 billion in contracts with the federal government. In China, Musk’s Tesla operates its biggest factory, Gigafactory Shanghai, which as of last year produced about half of all Tesla vehicles.

Elon Musk visited the Pentagon Friday for a briefing on China which underscored the billionaire’s steadily...