WASHINGTON (AP) – President Donald Trump is calling for slashing funding for the country’s Superfund hazardous waste clean-ups. That’s even as the Trump administration has built up the biggest backlog in years in unfunded toxic-waste site cleanups around the country. Trump’s budget proposal Monday calls for $113 million less funding for the popular, four-decade-old Superfund program. That’s part of a 26% cut for the environmental agency. Trump says the Superfund cuts challenge the agency to use funding more efficiently.