So what might you believe about these data? You could refuse to cherry pick the polls. That has long been our view here at Pollster.com. Our job is to summarize the trends as best we can, without partisan favor. If you do that, we get a 8.8 point Brown lead.
Perhaps you only trust non-partisan polls. Then the Brown lead is 6.8 points.
Maybe you are a Dem, who doesn’t trust the Republican pollsters. Then Brown leads by 6.5 points.
Or you are a Dem who doesn’t trust the non-partisan pollsters either and who does believe in the leaks from the Coakley campaign. Then Brown’s lead is 3.8 points. (This is the only estimate that includes the leaks.)
Or you are a Rep who trusts GOP and nonpartisan polls only. Then Brown leads by 11.3.