He has played attack dog to his father's opponents, poking fun at former Senator Rick Santorum's sweater vests and calling Mr. Romney a "bottom-tier job creator".
But a two-tier job market remains in place, with workers in the same region facing radically different conditions depending on their level of education and skills.
This two-tier job market particularly traps the young and low-skilled.The upshot over the next ten years, argues the report, is that, as demographic pressures build, the potential yearly growth rate will fall from 2.25% to 1.75%.
What do you do if you're stuck in a mid-tier job at a newspaper or cable news channel or publishing house?
On the other hand, renters willing to live outside of the top-tier job centers (but still near plenty of employment) can find rental housing deals in Indianapolis (No. 1), Kansas City (No. 2), or Las Vegas (No. 3).
As a result, this creates a two-tier job market - a top tier for mostly older workers who have permanent jobs from which they cannot be fired, and a second tier for mostly younger workers who have to survive on unofficial, short-term contracts.
Part of the blame lies with Spain's "two-tier" jobs market.
Competition may be even tougher for upper-tier jobs today, because more senior-level people are unemployed.
In order to secure one of the top-tier jobs for their offspring, parents engage in an arms race of education spending.
Both are small differences, but they do suggest that women are having to do better at school than men in order to land top-tier jobs.
Would they be consigned to second- and third-tier jobs, as happened to members of other blocs that supported Mr. Obama, like blacks and Hispanics, whose influence and visibility in high-profile jobs hardly match their voting muscle?
