A wild card that may drive higher growth at GE and reposition manufacturers as drivers of the U.S. economy is President-elect Donald Trump’s plan to cut corporate taxes. For now, investors gauging General Electric CEO Jeffrey Immelt’s progress toward delivering $2 of profit per share in 2018 can monitor benchmarks such as fourth-quarter shipments of a But there’s a wild card that may deliver much more spectacular growth, though on a longer and fuzzier timeline: President-elect Donald Trump’s plan to cut corporate tax rates to 15% from as much as 35%.