Can anyone imagine anyone confusing Cruz with Santorum? Santorum was a key man in RINO leadership before his loss in 2006. His support for Specter wasn’t accidental, it was party line. He was one of the favorites for WHIP in the next session going into the 2006 campaign. In more recent times, he not only failed to support the tea party movement, but he spent most of the early Tea Party years accusing them of being a Libertarian putsch within the Republican party. Santorum is basically a straight down the line establishment guy, who’s a bit too openly religious for their tastes.
On policy, Cruz is everything movement conservatives have always wanted, why waste time and energy splitting our votes again?