On September 22, House speaker Nancy Pelosi said if the administration continued to withhold the whistleblower complaint from Congress, "they will be entering a grave new chapter of lawlessness which will take us into a whole new stage of investigation." House Intelligence Committee chairman Adam Schiff, stating he had previously been "very reluctant" to initiate impeachment proceedings against Trump, said, "we may very well have crossed the Rubicon here." The vast majority of Republicans did not comment on the matter, with notable exceptions of senators Lindsey Graham and Mitt Romney, both of whom suggested Trump should release information to resolve the situation.