Oil prices have plunged by about 25 percent in the last month while the cost of gasoline has tumbled to as little as $2 a gallon in several states. President Trump is pushing for even lower prices , calling it “a big Tax Cut for America and the World.” But Mr. Trump is playing a tricky game. The United States became the world’s largest oil producer this year, and a collapse in prices could hurt scores of businesses and hundreds of thousands of workers in the energy and manufacturing industries. The damage would be particularly severe in states like Texas, Oklahoma and North Dakota that […]