President Trump’s pick to be the next FBI director said Wednesday any effort to “tamper with” special counsel Robert Mueller’s investigation into Russian meddling in the 2016 election would be “unacceptable and inappropriate.”

“Assuming that I can do it legally and appropriately, absolutely,” Christopher Wray told Sen. Dianne Feinstein, D-Calif., when asked if he would notify the Senate Judiciary Committee during his confirmation hearing of any such effort to interfere with the investigation.