So what? Trump had every right to respond... honestly and with factual information.
He didn't. Walker had nothing to do with that $2.2 billion budget R-E-Q-U-E-S-T from the agencies. The final product, after his line-item-vetoes produced a surplus. For Trump to call it Walker's deficit was completely false. Once he had been corrected publicly, for him to repeat it was beyond unethical: it was dishonest demagoguery.
It had no effect.