The working title for Iowa Republicans in the 2020 U.S. Senate race seems to be “the two faces of Theresa Greenfield.”Is the Democratic nominee the “scrappy farm kid” she claims or is she Senate Minority Leader Chuck Schumer’s puppet, as the Republican Party of Iowa claimed in a post-primary election call Thursday.There was no drama in Tuesday’s Democratic five-way Senate primary, Republican Party of Iowa Chairman Jeff Kaufmann said.“Chuck Schumer made sure of that,” he said.