CHICAGO — An Illinois judge issued a temporary restraining order Friday that prevents Chicago Public Schools from taking employment action against six teachers for refusing to show proof of COVID-19 vaccination or undergo weekly testing. CPS is “the only school district left in the state that’s still enforcing this. None of the rest of the school districts that are in this case are trying to get vaccination or testing compliance out of teachers,” said downstate attorney Tom DeVore, who represents the six CPS teachers. “They should drop it.” CPS issued a statement late Friday on Sangamon County…