Senate Republicans fear that President-elect Trump’s tax agenda could be derailed in the House by several potential landmines, including calls by some GOP lawmakers to raise corporate taxes and to lift the cap on state and local tax (SALT) deductions. Senators worry that if one or two House Republicans insist on raising corporate taxes to cut the deficit and a few others insist on substantially raising the cap on SALT deductions, Trump’s broader $4.5 trillion tax initiative may stall....