My intuition is this: Trump and Cruz are now in synch, for the most part. They see mutual benefits, from supporting each other.
Cruz should win the Texas contest, and hopefully Trump will campaign for him.
Cruz' writing indicates he understands disruption. Trump was elected due to his disruption.
Many/most in the emerging Dark Intellectual Web (right/center/left) are talking about needed "disruption," beyond politics, e.g. the need to challenge existing features of the status quo.
Scott Adams, Jordan Peterson, Ben Shapiro, Dave Rubin, Stefan Molyneux, Eric Weinstein, Bret Weinstein, Joe Rogan, Steven Pinker, Sam Harris, Candace Owens, James Damore, Tommy Sotomayer, and there are others.
All available on youtube, btw.