This poll is D+1.
Ok. According to Gallup MO is R+8 in party ID. So Trump is ahead by 10. Monmouth are frauds. If they fudge a national poll by 6, they can fudge a state poll by 9.
On the PDF where the crosstabs are, it looks like 30R 30D 40I. http://www.monmouth.edu/WorkArea/DownloadAsset.aspx?id=40802210510