Massachusetts Governor Maura Healey said a halt to federal research funding is threatening the state’s knowledge-based economy, warning that the cuts will undermine jobs and the highly educated workforce.  “It has a disproportionate effect on Massachusetts,” Healey said in an interview with Bloomberg News in Boston. “Donald Trump has only hurt American workers.” A freeze on billions of dollars in research grants threatens Boston’s sprawling health-care and higher education sectors, Healey said. US research funding sparks more than $16 billion of economic activity in the state each year, according to the Donahue Institute at the University of Massachusetts.