a GOP convention, and especially this one, is to unify the support for the nominee. The idea is to basically get at least everyone who voted Romney and/or McCain on board. There have been two weak ares for them, real Christian conservatives (the Ted Cruz wing) and educated semi-moderates (the Kasich/Romney wing). The idea being they have a lot of time to go beyond that to reach swing voters, especially with the debates.
However, are they really using the right tactics to unify Republicans and R-leaning voters? They seem to have decided that they can use Hillary hate to unify, but is focusing on the Fox News/Right Wing radio themes of Behghazi, Hillary for Jail, etc. really helping with their weak areas? It seems to me that it is mostly just throwing emotional red meat at the core demo of angry white working class voters that Trump already has in his back pocket.
The problem for most posters here is that they view the whole convention and most or all of the speeches. We are political junkies, after all. I tend to watch the convention more like a normal American - generally only watching what is shown in the 10pm hour (though I'm a sucker for the roll call of the states outdoing themselves because I get to learn "interesting" facts that they are home to the Division 5 champion of Women's Stickball or that they are the real Peach State or that the capital of Nevada is Las Vegas).
The focus of the 10pm hour has largely been on Trump's family, not so much Benghazi or Hillary for Prison. This was likely a deliberate choice by Trump to try to soften his image. The Melania Trump speech arguably backfired due to the plagiarism (unless you think all publicity is good publicity), but Donald Trump Jr.'s speech was a pretty good attempt to make his father look more like a common man than an out-of-touch rich guy like Romney.
The Benghazi/Hillary for Prison theme has generally only been made in sound bites or talking head panel discussions during this hour. Christie's speech wasn't in prime time. Guiliani's speech got some coverage on the broadcast networks. And they showed Carson and part of General Flynn's speech before dropping it because it was too boring. That's about it. The real prime time focus has been on Trump's family, not your usual politicians. It's an interesting choice, and probably won't pay off, but I understand why the Trump campaign is doing that.
