it's like illinois on a smaller scale...there are theoretically enough votes to kill phillie and some areas of the country are going red and becoming redder but it's a lot harder than in ohio and republicans didn't really shine regarding GOTV in comparison.
Illinois also doesn't have another major city on the other side of the state that's as Democratic as Pittsburgh.
Outside Chicagoland, Illinois is about as Republican as Indiana.
Not quite, it's more like Missouri. Clinton won it by comfortable margins in 1992 and 1996.