Not Taking A Stand?

In an LA Times article titled “Senate OKs Bush’s nuclear ambitions” (maybe this copy will last longer), they detailed who voted and how they voted.  What really caught my eye is that none of Senators running for president voted.

Five Democrats joined 48 Republicans in voting to table, or kill, Feinstein’s amendment. They were Sens. Evan Bayh of Indiana, Zell Miller of Georgia, Ben Nelson of Nebraska, Bill Nelson of Florida and Ernest Hollings of South Carolina, whose state is a candidate for the new pit-production site.

Backing the amendment were 39 Democrats, Republican Sen. Lincoln Chafee of Rhode Island and independent Sen. James Jeffords of Vermont. All four Senate Democrats who are running for president in 2004 missed the vote: Sens. Bob Graham of Florida, Joe Lieberman of Connecticut, John Kerry of Massachusetts and John Edwards of North Carolina. So did Republican Sens. Gordon Smith of Oregon and Peter Fitzgerald of Illinois.

In this vote, it wouldn’t have changed the outcome, but I wonder if they (or any of the other candidates) are doing their jobs at all now, or just campaigning?  Or was this issue too hot-potato for them to make their views public?