Donald Trump's trade war and corporate greed contributed to General Motors Co. cutting jobs and closing plants, Democratic senators in states affected by the decisions said ahead of an expected meeting this week with lawmakers and Chief Executive Officer Mary Barra. But they differed on what weighed more heavily.

Sen. Ben Cardin of Maryland said the president's duties contributed to GM's announcement last week that it would cancel production at four U.S. plants and cut thousands of jobs amid weak demand for the vehicles or other products made at those sites in Ohio, Michigan and Maryland.

"It has an impact, and it cost us jobs here in America," Cardin said on "Fox News Sunday."