Giuliani pals plead not guilty, and by invoking privilege may bridge impeachment gap - 2019-10-23
Recently indicted Parnas and Fruman are threatening to invoke privilege because they were (a) working for Giuliani on behalf of the president; and (b) had retained Giuliani as an attorney.
Ostensibly the charges against Parnas and Fruman have nothing to do with Trump or Giuliani, but you don't need a conspiracy theory to imagine those worlds colliding, because one of their goals was to remove the then-US ambassador to Ukraine, Maria Yovanovitch, to clear the way for an ambassador who would look the other way while Trump corruptly extorted Ukraine into investigating the Bidens. Which removal occurred.
By threatening to invoke privilege, Parnas and Fruman are likewise threatening to bridge the gap between their criminal conduct and the impeachment inquiry. And by suggesting that the DOJ somehow get involved on their behalf, they're putting Barr in a bad position too, because they're being indicted by the SDNY, which is of course a part of the DOJ.