[Republican Wildcat]

That is not true. Took all of a few seconds to find this:

http://www.washingtonexaminer.com/cuban-american-lawmakers-blast-obamas-cuban-policy-reforms/article/2611752

http://www.newsmax.com/Politics/marco-rubio-barack-obama-cuba-immigration/2017/01/12/id/768330/

[Lurkinanloomin]

The two links provided mention Rubio, but not Cruz.
And Rubio didn’t fight very hard except for a public statement. He’s worked harder against Trump.