You seem to be a bit disingenuous about your real reasons for supporting a RINO and I don't know why you want conservatives to support this one. Pro-life groups seem to be rallying around Tarkanian yet you prefer to rally around pro-choice Lowden. Reid has not withdrawn and there's no inkling that he will. My support goes to Tarkanian until it can be shown to me why that's a mistake.
A few months ago, when I was under the impression that Lowden was pro-abortion, I said that if it was a choice between Tarkanian and Lowden I’d support Tarkanian (you can check my posts) even though Lowden would have a higher probability of being elected. However, I’ve read some more about Lowden and am now convinced that she is pro-life, and given her other issue positions and attributes I prefer her to Tarkanian as our nominee. That’s not to say that I wouldn’t support Tarkanian if he won the nomination (and I would be rooting for him to prove me wrong about his ability to win the general), or that if someone that is both more conservative and more electable than Lowden ran I wouldn’t support that other candidate. But life is about making the best decision given your options, and in the case of the NV Senate election, unless there’s a change in the primary field, we will have to agree to disagree.