I am a diehard Democrat but I see a difference here. If a President offers a job to someone running for Senate, that by itself has nothing wrong with it. Presidents offer jobs to Senators all the time. Had Bush said, "I have a job for you if you don't run" then it would be the same.
Clinton offered Sestak a job that, if accepted, meant that Sestak couldn't hold a Senate seat, making a Senate run pointless (meaning that any kind of direct "if you don't run, I'll give you a job" offer would be needlessly moot, if not massively troublesome)
Rove, likewise, offered Nelson a job that, if accepted, meant that Nelson couldn't hold a Senate seat, making a Senate run pointless (meaning that any kind of direct "if you don't run, I'll give you a job" offer would be needlessly moot, if not massively troublesome).
Let's be honest - Rove wasn't offering Nelson the Cabinet post because the Administration thought he'd do a bang-up job. He offered Nelson the post to get him out of the Senate and to ensure that the Republican appointed to replace him would be the incumbent candidate in the upcoming election, giving him an edge in both the primary and the general. In other words, the job offer to Nelson was just as much about "influencing" an upcoming Senate race as the offer to Sestak (and I use the word "influencing" skeptically, since in both cases the "influence" came before there was even a primary, much less a full election, making these efforts somewhat akin to trying to rig the World Series by offering a job to a pitcher during Spring Training).
Ben made the choice to take or not take the job as he saw fit. Ramifications of taking the job are besides the point.
Let's not get illogical in our defense of our preferred party.
This is less about a defense of a "preferred party", and more about highlighting the inconsistency bordering on hypocrisy of Issa. Either what Rove did is just as bad as what Clinton did, or it's not. If they're both bad (or both perfectly acceptable), why did Issa stay silent when it was a Republican administration doing this, but is going on cable news channels now that it's a Democratic administration doing this?
Me, I think both events are standard politics, and while I have no love for Rove or Bush, neither one of them would have deserved accusations of bribery and threats of impeachment over the offer to Nelson any more than Clinton and Obama deserve them over the Sestak thing.