The judge in former President Donald Trump’s criminal hush money trial on Friday managed to surprise both sides of the aisle with his opinion on a problematic potential witness, according to a new analysis. Justice Juan Merchan heard arguments from Trump’s attorneys and Manhattan District Attorney’s office prosecutors about how to handle Allen Weisselberg, the former Trump Organization CFO currently serving time in prison on perjury charges, reports Law 360’s Stewart Bishop. “[Merchan] throws something of a curve ball at both sides,” Bishop reported from the criminal court where Trump stands a…