Liberal groups are bracing for the possible loss of a public option in the Senate, as Democrats prepare "Plan B" options in case Democrat Martha Coakley loses Tuesday's election.

One such option would be for House Democrats to pass the Senate-passed bill — which did not include a public option — in whole.

Adam Green, co-founder of the Progressive Change Campaign Committee (PCCC), wants Democrats to preserve the option even if the party is left with only 59 seats and cannot break a GOP filibuster.

"Reconciliation with a strong public option would be the obvious answer," Green told The Hill. "The Massachusetts race wouldn't have been close to begin with if congressional Democrats passed a strong public option and gave Obama voters a reason to return to the polls."