I think it's actually possible Bernie could drop out next week, if he gets completely shellacked.
Doubtful when he'll probably win all 4 states in May.
The more I think about it, I don't think KY and WV are in any way comfortable for Sanders. KY is closed (remembering that in OK, Clinton still won Democrats by 9-10%), WV is semi-closed. Indiana is open, so he could absolutely win there and he'll win OR but since it's closed, the margin might be a little underwhelming and the delegate split not all that great.
Kentucky is the state I am the least certain about for Sanders, you are correct that it is a closed primary and there is obviously a decent % of African Americans, especially in Louisville. West Virginia could also be close. I think how Western PA votes could be a decent indicator for how both states vote. Indiana will be interesting. Clinton should do good in Lake County and Marion County, but I don't know any other areas in the state that would automatically go for her and I imagine the rest of the state would look like downstate Illinois. Oregon is closed, but it is also vote by mail just like the general election, so I imagine turnout should be good.
