Before Obamacare, state governments were the chief regulators of health insurance. Obamacare put the federal government in that role. The latest Republican health-care bill, sponsored by Senators Lindsey Graham, Bill Cassidy and others, would partially reverse that shift in authority. It would also give states the ability to allocate a lot of federal health-care dollars as they wish. The fact ...

What if your car could keep you out of an accident by knowing what was coming around the corner? No, I’m not just telling you what you already know about self-driving cars. Most of the self-driving prototypes we’re familiar with rely on sensors, which have limited range and can’t see past obstacles. That’s enough to prevent a lot of accidents—but ...

Bloomberg US stocks advanced as President Donald Trump prepares to lay out his tax-cut plan, while the dollar extended gains and bonds fell after Federal Reserve Chair Janet Yellen boosted expectations for an interest-rate rise in December. The S&P 500 Index was near record levels in early trading. The Bloomberg dollar index headed for a six-week peak and Treasury yields ...