White House economists estimate the United States has a shortage of 10 million houses, according to a new report out Monday — and say regulatory cuts could lead to more construction to stabilize prices, increase home ownership and fuel faster economic growth. The analysis, part of the Economic Report of the President, outlines both a political risk and a messaging opportunity for President Donald Trump, whose public approval has slumped because of concerns about his tariffs, the Iran war and his unfulfilled promises to slash inflation and unleash stronger growth. Trump signed two executive orders in March directing federal agencies...