Let me take a look. It's worth noting that at least up until the 2006 elections (I'll need to double check 2007 again), that the results weren't "official", just a guideline for Jimmy to choose. In that sense it's impossible to actually win an election, as the actual decision was not the community's to make.
EDIT:
Lets see:
Of former arbitrators that were successfully elected again without expansion:
Raul did, actually, though the standards were
radically different (The highest % was Theresa Knott with
51%). (He had won a
special election in July)
UC won election in 2007...however it's debatable to say he was re-elected, as he was hand-picked for the original ArbCom.
Really shocking, I never actually thought about that.
This post has been edited by CrazyGameOfPoker: