Probably because it's not a jobs bill. It's just another boondoggle spending bill that Obama will use as a slush fund to bribe voters with.
You mean like the 20% tax cut that Romney was offering in order to get the rich to vote for him. That sounded like a bribe to me. Of course it magically would not cause an increase in the deficit because you can cut taxes and reduce the deficit - just ask George W. Bush. Of wait, that resulted in the largest deficit in US history.
When Republicans talk about tax cuts for the rich, it's rewarding the strivers, even if the tax cuts are paid for with money borrowed from the Chinese. When Walmart workers get food stamps because they can't feed their families on the minimum wage they get, they're shiftless n'eer do wells sucking on the public teat.
Sadly, while Walmart divied up their campaign contributions between both candidates, with Romney getting slightly more than Obama, Walmart employees contributed the bulk of their money to Romney. Talk about voting for the wrong guy to protect their interests. Romney even said "I don't care about those people" and Walmart workers are definitely among the 47% of Americans who rely upon "entitlements" to survive.
And no, Michelle Obama did NOT sit on the Walmart Board of Directors. She did work with the company on her healthy eating initiative, but she is not otherwise connected to the company.