Republicans are going to the polls in much greater numbers than democrats so far this year. That’s reality on the ground.
And if FR is any indication, the party is so divided that a good chunk of those voting in the primaries will not vote for the eventual nominee if he's not "my guy". I think the general level of vitriol here is a pretty good indicator that the party will be a wreck going into November. We will be able to beat Hillary if she is indicted, but otherwise....
Gonna be President Hillary and a Democratic Senate.