it comes as the mueller probe escalates and includes potential obstruction of justice. so there's no question that the president has made clear what's on his mind today, tweeting throughout the morning at the white house and giving that interview with bloomberg news, making news about jeff sessions, saying he will keep him on until november. that's going to be something that's going to make republican senators and house members very pleased, they're worried about fallout from any firing that could happen. wolf, we'll see what the president says tonight in indiana. this is part of his midterm election push. republicans are trying to win the senate seat. now it is held by incumbent democratic senator joe donnelly, one of the red states the white house is hoping a republican will pick up in november. we'll see what the president addresses tonight. he certainly made clear the russian investigation is weighing heavy on his mind. wolf? >> as it should. jeff zeleny in indiana.