Schapitl added in a statement on Friday that Senate rules require the two GOP chairmen to "share investigative material. ... It is not a ‘courtesy.’"

"Senator Wyden and his staff have not disclosed any investigative material, as every outlet has noted. It’s ridiculous to characterize an official office statement on the double standard of Trump administration cooperation with Congress as a ‘leak,'" she added.

In the November letter, which was not publicly released by either of the committees, Grassley and Johnson say they are "conducting an investigation into potentially improper actions by the Obama administration with respect to Burisma Holdings ... and Ukraine."

According to the Treasury Department , a suspicious activity report is filed by a financial institution when they find an "initial detection of facts" pointing to a suspect activity in an account. That includes filing reports on cash transactions that exceed $10,000 and reporting activity that "might signal criminal activity," in an effort to prevent money laundering. Johnson and Grassley have fired off a flurry of letters as they've probed potential conflicts of interests stemming out of the Obama administration. A GOP aide told The Hill on Thursday that they've been informed by the State Department that they have and are expected to hand over documents responsive to their requests. Johnson and Grassley have fired off a flurry of letters as they've probed potential conflicts of interests stemming out of the Obama administration. A GOP aide told The Hill on Thursday that they've been informed by the State Department that they have and are expected to hand over documents responsive to their requests.

In addition to Democrats, several Republican senators are publicly urging their colleagues to move on after the months-long divisive impeachment fight, which centered around Trump's decision to delay Ukraine aid and his request for President Volodymyr Zelensky to help "look into" the Bidens.

In 2016, then-Vice President Biden pushed for the dismissal of Ukrainian Prosecutor General Viktor Shokin, who was reportedly investigating Burisma at the time.



Fact-checkers have debunked claims that Biden was acting with his son's interest in mind. The former vice president has denied wrongdoing, and there's no evidence that either Biden engaged in any criminal wrongdoing.

Updated: 10:28 p.m.