Not sure about cru Cruz, but Rubio is a Mormon.
He says he isn't now.
Unclear what he is.
Catholic or Protestant Evangelical?
And here is from Wikipedia:
Rubio grew up in a family that was Roman Catholic, though from age 8 to age 11, he and his family attended The Church of Jesus Christ of Latter-day Saints while living in Las Vegas, where his father worked as a bartender at Sam's Town Hotel and his mother a housekeeper at the Imperial Palace Hotel and Casino. He received his first communion as a Catholic in 1984, before moving back to Miami with his family a year later. He was confirmed and married in the Catholic Church.
Ted Cruz is Southern Baptist according to Wikipedia
Vote smart.org, just says Christian
See my post #24