Let's not.
In a business, that would be like promoting a hotshot salesman to CEO, instead of the Chief Operations Officer. No board of directors in their right minds would do that.
Rand Paul needs to get some EXECUTIVE experience under his belt before taking on the biggest executive position on the planet. Let's see him manage the government business of an entire state before we elevate him to president of the US.
Same goes for every other prospective presidential candidate. Legislators do not make good presidents. The current ex-Senator is making a complete mess of this country, and the fact that he's never run so much as a hamburger joint is proving to be disastrous.