Well I think everyone on these forums know the endorsement was not one Rand wanted to make. I think we all know he doesn't like or truly support Romney, and I think we all know he chose to bite the bullet for a chance at something bigger later on in his career. If you don't realize that, you're not very smart....
I think the bigger issue is if that was the smart or right thing to do. Should he have taken one for the team now for a chance at having a greater impact down the line as a possible president with a possible congress he could actually get something done with?
I have no doubt Rand struggled with that endorsement. He's a very smart man...he had to know going in he'd isolate a number of people. He had to know he'd be called a sellout...but if you've followed him from day one you could tell he was playing the game to get his foot in the door.
He did it with the senate race (carefully choosing what issues he talked about, though it was apparent he knew who the elite were and what they were doing.) He's doing it now and it may also help him in a future presidential race.
Compound that with the groups of people accusing him of selling out is two fold. You have those that wanted him to denounce Romney as a republican. You have those that wanted him to steer clear of party lines. You have those that want him to drop and become libertarian like his father once did.
All I can say is, I feel with confidence, Rand is entirely principled, but he's trying to play the game to have the most influence he can to make positive change. I think, watching his father's stonewall approach (while principled and admirable) and seeing how he spent so much time in congress and nothing really got done (from a practical standpoint, though philosophically it was brilliant) he's trying to take a different approach.
He's made some very good votes in the senate, and has introduced very smart language into very controversial bills. There's no doubt he understands and sees everything from all angles, just as his father did. He clearly understands what's going on and the effect every little thing has.
Do I support him playing the game? I honestly can't say. I can say, however, if he eventually becomes president and does great things because he played the game, many here will change their tone.
We'll have to see how it plays out.