As I understand it, Warner's approvals are at 62%. I don't think that spells election defeat. Although it may or maynot help out Davis. That is pretty good for your party in reelection sense. I don't see as of yet VA as a top tier opportunity for the Dems, it probably will be later, but it is a 2nd tier pickup opportunity.
Yes, but Warner is almost certainly not running for reelection, and the likely Democratic challenger is Mark Warner, with a 70% approval rating.
I don't see Mark Warner as a likely candidate for U.S. Senate at all. I see him as a Vice Presidential or Gubernatorial candidate instead.