Kind of puts their MO polls into perspective...
Their final poll (Blunt +3, Trump +14) in 2016 wasn't bad, they even underestimated Trump's margin.
And they could very well be right here and in MO in the end (with the potential for increased accuracy in MO given that history), but it is interesting that people can call this race Lean D or Toss-up and call MO Likely R when Sisolak trails here by more than McCaskill does behind any of the challengers in the other poll. Yes there are other factors at play besides polling (incumbency, region, PVI, etc.), but the difference in how people are treating these polling disparities is quite extreme.
NV is a Lean Dem state, Missouri is basically Safely Republican. Therefore the Missouri poll, if anything, underestimates Rs, plus it is an extremely bad sign for an incumbent when they are already trailing in early polls, remember that Landrieu, Hagan, et al were up big in early polls, and they lost - so McCaskill is an even worse position. McCaskill has a slight chance due to incumbency and the possibility of an akin-like scenario, but it's like 20% at best.