There are some interesting and some unflattering details about Issa on his Wikipedia page.
Is he really a bad guy?
Perhaps, I don't think him good, just because he chose to ride the elephant into Congress.
I don't think him totally bad for having some splotches on his record either.
What we want of a congressman is worthy to discuss.
They all have imperfection, they are all keen on themselves, they are mostly wealthy.
Other sorts of people are less motivated and able to become congressmen/ senators / presidents.
So accepting that we are never offered saints to vote for, what are we trying to elect ?