Silicon Valley tech leaders are speaking out against the possible loss of federal funding for Caltrain upgrades, claiming that the move by Republicans could cost the Bay Area 9,600 jobs, affect 60,000 commuters per day and cost the region’s economy many millions of dollars.

“Why would one want to damage an aspect of America’s economy that not only produces innovation and job creation, but is incredibly valuable from the perspective of GDP?” Silicon Valley Leadership Group CEO and president Carl…