As part of my Rover Manifesto, I'd do several things while acknowledging the largely correct points brought up by Kep and Flaggy (and what are the odds of THAT happening

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So, working class/blue color/manufacting jobs. What to do for a place like Baltimore for example, whose jobs I read went from 1/3rd in manufacturing in 1970 down to like 5% (and I'm sure its worse than that as the total # of jobs in Baltimore has probably shrunk over that timeframe).
1) Country needs to commit itself to natural gas to power energy consumption, INCLUDING powering cars/trucks. To that end, all trucking & bus fleets should convert over to natural gas power. This will require major infrastructure improvements country-wide as gas pipelines are laid to connect mostly interstate service stations to gas grid. Cost offset by major reduced cost of foreign oil, and natural gas is domestic product. Construction jobs = by and large blue collar work and this would affect all states.
2) Its insane most steel in the world comes from China. You can't have a military without this product, but if we ever got into a confrontation with our Chinese "friends" I'm wondering how quickly that would get cut off. Being that USA is world's policeman until wussy other countries start solving their own problems (which should happen just about, oh..NEVER) I don't expect any trade objections when we institute tax breaks to make domestic steel production cost as much as Chinese production, up to the point where we have enough production to meet our yearly needs in case of a crisis. This will create hundreds of thousands of jobs in run down sh !tty places where the environment is the least of people's problems.
3) Oil exporter once country is energy independent. This will require build up of green energy as well as nuclear plant modernization program. By doing this we conserve exportable products (primarily oil) and ream the rest of the world with expensive fossil fuels while US gets a combo of wind/hydro/solar/nuclear/natural gas to power our economy. Initial investment to ramp up these sources will create jobs, and be paid for dozens of times over when we're exporting something we don't require for our own usage. (for the record, a US+Canada energy independence is fine as well).
In one swoop I've created millions of working class jobs for the poor slobs currently toiling away at Mao Mart hoping for a minimum wage increase so they can see more money. This approach is relatively non controversial, puts the emphasis on people being left behind over the last 40 years, and does not rely on tax cuts for Mitt Romney to stimulate growth. Next time I get together with Hillary I'll be sure to get her up to speed.