Kingmaker Rand Paul announces his probable likely decision

Kentucky Sen. Rand Paul finally addresses the question that everybody's been dying to ask:

On the eve of a fresh trip to the early presidential state of South Carolina, Kentucky Sen. Rand Paul said in an interview he is “unlikely” to get involved in the brewing Senate primary there between GOP incumbent Lindsey Graham and several would-be conservative challengers. [...]

Of the South Carolina primary, Paul said: “I’ve met, I think, all three of the challengers, and like I said, I haven’t made a decision and I think it’s probably unlikely that I’ll get involved.”

So, he's "probably unlikely" to take a position, presumably because it's "probably unlikely" that Lindsey Graham will endorse Rand Paul in 2016. But focusing back on 2014, perhaps the better question about Rand Paul and making endorsements in Senate races is this: Would it matter if he did?