I read Trump as insinuating that he has reason to believe that the WH pdf will be exposed as a fake at some point in the future. This is almost a veiled threat by Trump, IMO.
He knows the Congress will not do anything until either the GOP retakes the Senate or until after Obama leaves office.
“He knows the Congress will not do anything until either the GOP retakes the Senate or until after Obama leaves office.”
IMO, Trump may actually know information that could accelerate Barry’s exit from office just as the tapes did in Nixon and the stain on the blue dress resulted in Clinton’s impeachment (OK, at least the stain derailed Gore’s presidential run).
Bottom line is how incriminating the evidence is that Trump seems to have in his back pocket.
In the case of Nixon, his own party turned on him. In the case of Clinton, his party stood behind him (and some feckless GOP as well).