I don't expect a 15% plus victory for Trump in the state. But I do expect a Trump victory in the upper single digits, maybe 8% or 9%. While there is a remote possibility that Cruz pulls off an upset in today's primary, such a victory would be so close that the division of the 57 delegates won't favor him by much when he really needs to walk away with a sizable majority of Indiana delegates. Then you have the California primary looming on the horizon. That state has gotten away from Cruz as well with Trump's polling edge ballooning to more than 30 points in the Golden State.
As a card carrying member of the #NeverTrump club, it is like watching helplessly as your family members join a cult led by a charismatic leader. You try to reason with them, you try to put out facts that the leader is a charlatan, a phony, but nothing works.
On the Senate side, I expect the battle of the Republican congressmen to be won by Todd Young, a solid double figure win over his colleague Marlin Stutzman.