U.S. industry is urging lawmakers to delay a looming ban on the government contracting with companies that use certain Chinese products, but it's unclear whether a Congress keen on taking a hard line against China will consider the proposal. In the Senate, an amendment to the fiscal year 2021 defense authorization bill filed by Sen. Ron Johnson (R-WI) this week would delay the statutory ban on federal contractors using products and services from Huawei, ZTE and other Chinese technology companies...