Conservatives are a house divided these days on many issues. But on the core issue likely to determine the 2012 election, the economy, there’s not a millimeter of space between them. Government is the problem and reducing the burdens of taxes and regulation on America’s job creators stands at the top of nearly every Republican presidential candidate’s agenda. That’s the only way to get the economy humming again, fuel new job creation, and bring unemployment down, they contend.