It occurs to me that some of the disagreement we had in this thread reflects the fact that there are actually two populations to which the Republican Party could appeal.
The first is the base, the “preaching to the choir” group. The conservative base needs to be motivated to get out and vote, and must be kept energetic and enthusiastic in order to do that.
The second is the people who aren’t already on board, and who need to be convinced or “swung.” They tend to be more moderate and are the so-called “Independents” and also the low information voters or “LIVs.”
The two groups have a tendency to respond to very different and possibly contradictory approaches. This accounts for quite a bit of the turmoil in the Republican Party. The base is angry (often very angry) at anything that smacks of appeals to the center, the LIVs, the moderates, the undecideds. In fact, members of the base tend to be turned off by such appeals—and rightly so, I think, when a candidate ventures so close to the center in enough areas that he/she becomes nearly indistinguishable from an actual centrist or even a Democrat. That’s where the insult “RINO”—Republican In Name Only—comes from.
But as I see it, the base can sometimes confuse appealing somewhat to the center with being from the center or of the center. You can do the first without being the second. However, although it’s not easy.
So, how could a candidate reconcile the two approaches?
Of course, if the first group (the base) is large enough and motivated enough (and especially if the party is in the majority among voters to begin with), wooing the middle is much less important and can even be more or less dispensed with. All you have to do is turn out the base in enough numbers.
I believe that was why Obama won in 2012; he was still successful at doing so. It’s not that he didn’t appeal somewhat to the middle, most especially in the 2008 election, where he did it by pretending to be far more moderate than he actually was. The left was going to vote for him anyway, particularly because of his race, so I doubt he had to worry much about losing them and could afford to present himself as much as possible as a centrist. (I think almost anyone should have seen through his charade, which wasn’t very good, but apparently they did not.) It also didn’t hurt that Democrats were in the majority anyway, and that Bush had gotten such a bad rep by 2008 that people were eager for a change of party.
Republican candidates face a different task. First of all, during the last decade the GOP has not had the majority of voters who affiliate with a party or lean towards a party. So the GOP base is not enough, unless turnout is absolutely extraordinary for them and low for Democrats. That can’t be counted on; even in 2012, when Republicans seemed very motivated to vote, it didn’t come to pass that turnout was extraordinary (although there was no “missing 2 million Republican voters; that is a persistent myth I’ve written about before).
In any election under such conditions, the GOP must do those two contradictory things I’ve already mentioned: highly motivate its somewhat-perfectionistic base, and appeal to the middle. Some people think the best way to do this is to have a candidate who actually is from the middle, but I think that’s a poor solution. Some might say Romney fit that description, but I supported Romney because (1) he was the nominee, and I would have supported any Republican against Obama; and (2) I was and still am of the opinion he was more conservative than conservatives thought, and I devoted a fair amount of verbiage to trying to prove that.
But I think a conservative candidate can appeal to the middle as well as the base, if he/she is smart about it. That’s what Reagan was able to do so well. Reagan, of course, was sui generis. But in a different way, I think Scott Walker has the potential to do it, and that’s one of the main reasons he’s been my favored 2016 candidate for a long time. He has a proven ability to win as a conservative in a mostly-blue state, which involves appealing to the middle and even liberals, and to do it again and again while sticking to his conservative principles. He doesn’t do it by being an attack dog, although he does it by being dogged in keeping on message and delivering results. He doesn’t pander to the middle even in his rhetoric, but he also performs as a conservative who delivers the goods. That’s why I like governors as Republican candidates: they have a record to point to, and if successful at performing effectively as conservatives, it can be a very strong argument, even to the middle.

