An electability argument is the same thing the GOPe said about Romney. No one has proven themselves to be able to predict electability. It’s not easy to predict.
Carter and Bush Sr. had the name recognition and lost their presidential elections.
If Romney was hurt by the 47% line, Trump has 30 years worth of quotes that can be mined and used to smear him in ads, includes tons on video. No candidate provides more potentially damaging opposition research than Trump. This severely impairs his electability and I’d argue makes him the least electable candidate of the bunch.
Since Trump is offering to let all the “good” illegals back in after deporting them, and his written policy doesn’t even say he’ll deport them all, I’d argue he’s worse on immigration than Cruz. At least Cruz has said whoever stays will never have a path to citizenship. Trump hasn’t said if the ones he lets back in will get a path to citizenship.
Another reason not to trust Cruz. He knows better then most that the courts in the US will never allow tens of millions living here legally to be condemned to second class status. The courts would rule it unconstitutional to be allowed to live here but not be allowed citizenship. But even if the courts did allow it, the Rats once in control of government (and they will at some point in time be in control) would overturn such a law in a New Your second. Cruz is completely full of Bull S with he legalize but no pathway to citizenship.