The Clinton sexual assault stories combined with the FBI investigations is enough to slow down the Hillary campaign.
Obama is running around trying to change the subject with other issues to keep the lazy media (looking for talking points) occupied. There is more going on in the Democrat Party than the media wishes to report. The Democrats have a game plan should Hillary face punishment. Her negatives may prevent her from moving ahead with any real enthusiasm, unless the Democrats can scare blind followers about Republicans.
Or Biden enters the race or is nominated at the convention. Biden is the insurance policy.