The curtain may be coming down on Donald Trump's show trial

Star prosecution witness Michael Cohen has proven such obvious liar under cross-examination that a guilty verdict is no longer certain, even from a partisan jury; what happens if Trump walks?

You’d think a guy who lies as much as Michael Cohen would be better at it.

On Thursday, under relentless cross-examination from defense lawyer Todd Blanche, Cohen drove the effort to make Donald Trump a felon for the “crime” of misclassifying accounting records over a cliff.

To recap: in October 2016, Cohen paid the adult-film actress Stormy Daniels $130,…