The rudiments of courtroom proceedings in former President Donald Trump’s criminal trial spurred a MAGA meltdown Monday. Donald Trump Jr. and Eric Trump both took to social media to condemn New York City Judge Juan Merchan for reminding his father that New York law mandates he appear in court every day of the trial. “Pure evil,” Trump Jr. declared, sharing a tweet from the notorious pizzagate conspiracy theorist Jack Posobiec. Posobiec felt the judge should have immediately allowed Trump to skip court on May 17 to attend his youngest son Barron’s high school graduation. According to MSNBC’s Ka…