Liz Cheney has a message for her former GOP colleagues in Congress: Say in public what you already know privately. The ousted congresswoman called Donald Trump “unstable and dangerous” after the former president distorted the use of “deadly force” language in an FBI document for the Mar-a-Lago search to falsely claim Joe Biden tried to have him assassinated. “Donald Trump is unstable and dangerous. He knows this is a lie that could again provoke violence from those who blindly follow him. Rs in Congress: You know Trump is unfit. When will you put aside your cowardice and stand up for what you …