The president-elect has asked Elon Musk to wage war on regulations — some of which helped make Tesla the world’s most valuable automaker.

New York’s plan to put a price on carbon is still on hold. But here’s how it would work, if and when it gets off the ground.

President-elect says he has ordered inauguration and speeches to take place in the Capitol Rotunda ‘as used by Ronald Reagan in 1985’ ...