Do you believe the democrats could win any national election without the welfare vote?

Your question is of poor taste. Makes me wonder if it is intended to be a divisive wedge as if the recipients do not have enough challenges or are something less than human beings.
I have included (below) a definition and explination for your enlightenment in the event you are unaware. Welfare in this nation is a moral and ethical social program that applies to every citizen and we can as a nation hold our heads high because of it.

I believe they can win though as people get better informed by asking themselves the important questions which have been void as a result of the "financed wedge and divide" strategy they are being bombarded with by the GOP/Special Interests. Remember all that United we stand and divided we fall.

Welfare is the provision of a minimal level of wellbeing and social support for all citizens. In most developed countries, welfare is largely provided by the government, in addition to charities, informal social groups, religious groups, and inter-governmental organizations. In the end, this term replaces "charity" as it was known for thousands of years, being the voluntary act of providing for those who temporarily or permanently could not provide for themselves.
Welfare can take a variety of forms, such as monetary payments, subsidies and vouchers, or housing. Welfare can be provided by governments, non-governmental organizations, or a combination of the two. Welfare programs may be funded directly by governments, or in social insurance models, by the members of the Welfare scheme.

Welfare systems differ from country to country, but Welfare is commonly provided to individuals who are unemployed, those with illness or disability, the elderly, those with dependent children, and veterans. A person's eligibility for Welfare may also be constrained by means testing or other conditions.

Regards