This is not in league with other polls - Rasmussen and Fox put the crook up by four, not eleven. If the demographics for this Reuters poll are the same as for the last one, they overpoll Dems voters by 7 to 10 percent, underpoll Republicans and Indies.
Last few polls had Hillary up 3-4. You have to expect some bump for Hillary once he got the nomination wrapped up. I was expecting it to settle somewhere around 8 %.