Newt Gingrich didn’t endorse him yesterday.
Romney is not yet the nominee.
While formally suspending his bid for the Republican presidential nomination on Wednesday, former House Speaker Newt Gingrich said that he believes presumptive Republican nominee Mitt Romney is conservative enough when compared to “the most radical, leftist president in American history.”
“And my answer is simple: compared to Barack Obama?
You know this is not a choice between Mitt Romney and Ronald Reagan. This is a choice between Mitt Romney and the most radical, leftist president in American history.”
That's an endorsement no matter what semantical acrobatics you wish to engage in.