President Obama has reversed course on proposed smog standards, a victory for business interests that had decried the smog restrictions on the grounds that they should be postponed -- until at least 2013 -- due to the recession. The…

Smokestacks belch out smoke at a factory; file photo In every election there are a few issues that shape the look and feel of the campaign, and even in the earliest stages of the 2012 race, one issue has…