Rand Paul's run for the presidency came to an end this week--though he may not know it. Rand Paul will probably go on raising money and clogging up Republican primaries and caucuses, but any realistic chance he had of becoming the Republican nominee came to an end that he had plagiarized two Wikipedia articles in speeches he'd delivered.
It's worth pausing here and acknowledging what really happened: it's obvious that Rand Paul doesn't write his own speeches. The plagiarized portions of Paul's speeches were almost certainly the work of a sloppy intern or low level staffer. But admitting that a plagiarizing intern writes your speeches isn't an option for Rand Paul. This is a classic case of damned if you do, or damned if you don't--which is another way of saying Rand Paul is damned.
Rand Paul had about a 15 minute window to come out and admit that he uses speechwriters and that one or more of them had plagiarized Wikipedia and was being fired.
Rand Paul is done, he just doesn't know it yet. The disastrous campaign of Ken Cuccinelli has claimed another victim.