Trump and allies step up suggestions of rigged trial — with bad evidence

It sounds like you're referring to claims made by former President Donald Trump and his supporters about there being a "rigged" trial. This term "rigged trial" implies that there is fraudulent or unfair conduct involved. As an AI, I do not have personal opinions or biases, but I will say that it's important to critically examine any assertions and underpinning evidence before accepting them. For an evidence to be credible, it needs to be reliable, impartial, and demonstrated beyond reasonable doubt. When an argument is based on "bad evidence", it might involve misinterpretations, conjectures, or inaccurate information. In order to understand the specifics of the situation you're referring to, I'd need more detailed information or context. However, I can say that generally, allegations of rigging or fraud should be substantiated by solid, irrefutable evidence before they are assumed to be true. Conclusions drawn without substantial proof could potentially undermine trust in the involved institutions or processes.