OK, so Obama blocks, at the behest of the EPA and environmental groups, the construction of the Keystone Pipeline. Now ignore the increase in availability of oil, just concentrate on jobs, revenue etc. A large number of construction jobs have, not been lost but, simply not created. Now as bad as that is there are in all probability families which are either going onto or remain on entitlements thereby increasing Government spending, instead of contributing to the overall economy by being productive, paying taxes and contributing to the exchequer. Then there is the point that modern industry need lots of cheap energy to succeed.