This isn’t a matter of ideals. It’s not even a matter of politics. It’s a math problem. With the upcoming “SEC Primary” and the way that the race is shaping for the Republican party, there are only two truly viable candidates: Ted Cruz and Donald Trump.
There’s a reason that Trump has attacked nobody but Cruz for weeks (other than Jeb Bush who he attacks for sport). He knows that Cruz has the mathematical path to beat him. Nobody else does.
Here’s Dr. James Dobson making the point: