Conventional wisdom is that Hillary Clinton has the best shot to do well in Virginia, especially with voters away from the immediate Washington, D.C. suburbs and outside the Hampton Roads area.

Former President Bill Clinton was here for a second straight day, making campaign stops across Virginia, after a full day in Maryland with daughter Chelsea on Sunday. Hillary on Monday started off in DC, then went to a GM plant north of Baltimore, jetted down to the University of Virginia and then made it back for a "debate" on a local DC TV station, which turned into an interview.

Barack Obama had been invited, but he turned it down, so it sort of morphed into a chance for each to offer up reasons to to suport them on Tuesday, Hillary live and Barack on tape.

Hillary has the party organization behind her in Maryland, with Governor Martin O'Malley and Senator Barbara Mikulski. But in Virginia, Obama has Governor Tim Kaine and a number of Democratic members of the Congress.

Clinton has demonstrated a pretty amazing ability to pick up votes, especially in rural areas - just look at Missouri, where she won 105 of 110 counties, but narrowly lost the state because Obama was huge in urban areas around Kansas City and St. Louis.

Basically, if she loses all three on Tuesday, she will be the underdog next Tuesday in Hawaii and Wisconsin. Her firewall then becomes Texas and Ohio, the two big prizes on March 4th.

Lose one of those and she will just be hanging on in the race. Lose them both and one might logically predict that the calls for her to cede the baton to Barack Obama will increase and increase dramatically.