Dole, Dubya twice -- blue
Clinton 1996 and Dubya twice -- green (Florida disputed for a month... thus the light shade)
Clinton 1996, Gore, and Kerry -- red
Clinton 1996, Gore, and Dubya -- tan
Clinton 1996, Dubya, and Kerry -- yellow
The states in red have 242 electoral votes. Not one of those states (or DC) gave any electoral votes to any Republican nominee for President since 1988. Donald Trump has done nothing to bring any one of those states to the Republican fold in the November election for him. The state in light green (Florida) puts Hillary Clinton over the top.
Subtly it is even worse. I can see ways in which Iowa or New Hampshire go to Trump, but no way for New Mexico. Democrats have 247 electoral votes practically assured for them; Mew Mexico is about as D in Presidential elections as Massachusetts.
If Trump loses Florida, then he must win at least one state that Bill Clinton won twice, Gore and Kerry won twice, and Obama won twice, or New Mexico. If not New Mexico than he would have to pick up at least seven electoral votes, and your guess is as good as mine of where that state lies. Pennsylvania is the lowest-hanging fruit among them.
So -- Hillary Clinton has:
242 electoral votes behind the strictest assumption of the Blue Firewall -- and she wins outright with Florida.
247 if one thinks New Mexico as a sure thing for her due to demographics. With those states, Iowa (6), New Hampshire (4), and either Ohio (18), Virginia (13), or the combination of Nevada (6) and Colorado (9) puts her over the top. Iowa and Ohio or Nevada and Ohio also put her over the top.
She's not going to win North Carolina without also winning Virginia, Indiana without also winning Ohio, Arizona without also winning both Colorado and Nevada, or Missouri without winning Ohio and Virginia.
Donald Trump simply has too many ways to lose and too few ways to win.
