testify? it s not a surprise they are calling allen weisselberg. but allen weisselberg is also someone that we ve all long known may have even more information about the trump organization than michael cohen simply by virtue of having been at the trump organization so much longer than michael cohen. what we know at this point is that allen weisselberg has immunity, but we don t really know if it s partial immunity or complete immunity and the government isn t really volunteering that information. that may affect a lot of what allen weisselberg says or doesn t say if he comes to testify before congress. could they make him show up, could they subpoena him? congressional subpoenas must be obeyed. congress historically has honored in a sense privilege, attorney/client privilege, common law privileges. congress is not required to honor those. on the other hand, a witness can