As a US Court of Appeals for the DC Circuit panel considers former President Donald Trump’s argument that he should be immune from prosecution, MSNBC legal blog writer Jordan Rubin lays out a few possible reasons for the delay on a ruling in a Thursday, January 25 op-ed. Rubin notes one of the reasons for the hold up could be that “the judges know that this opinion needs to be airtight. Whatever they decide will inevitably be appealed, which would mean not only their colleagues on the full D.C. Circuit — in what’s known as en banc review — but also potentially Supreme Courtjustices reviewing t…