The latest, beefed-up White House offer on a new coronavirus package hit resistance from both Democrats and Republicans over the weekend, deflating hopes that a bipartisan agreement was imminent. Democrats criticized the nearly $1.9 trillion offer from Treasury Secretary Steven Mnuchin as insufficient, particularly in its funding and strategy for coronavirus testing and tracing. Senate Republicans, meanwhile, balked at the offer’s cost and its proposed expansion of the Affordable Care Act. The concerns from both…