I would believe it more if these were direct quotes with dates. There could be “context and nuance” at play here.
So did Cruz mislead his fellow senators?
That's not the question. The question is: Did Ted Cruz stay loyal to the voters of Texas who elected him to stop amnesty? Did he keep his campaign promises to the voters of Texas?
Ends justified the means according to RedState
http://www.redstate.com/diary/quill67/2016/01/29/time-line-transcript-shows-ted-cruzs-amendment-designed-kill-gang-eight-immigration-reform/