I believe Casey realizes the investigation will be a big nothing.
The democrats and the media have been spewing this rubbish for over a year and they don’t want it to backfire that they’ve wasted the American people’s time and resources for that long.
He’s telling Mueller to drag it out. Lol he’s implying Mueller would interfere in the election on the side of Trump.
These people are as transparent as glass.
Casey wants to preserve the ability of the Dems to lie their butts off about it all campaign season long.