Lost in all the back and forth of the Republican presidential primary is a profound question for the conservative movement: “Whither Ted Cruz?” Let us not overlook a conservative powerhouse, with a proven track record of organizing actual voters across a wide swath of states, expertise at small-dollar fundraising, and the discipline to endure months of heckling by Donald Troll and his oafish minions. Is no one else excited to see the next chapter for Cruz? If he so chooses, Cruz can be the conservative leader he was so often attacked for not being over the last few years. Now...