Democrats should fear Donald Trump

This isn't coming from a Trump supporter but from a columnist for the ultra-liberal Washington Post:

When I hear smart people explaining why Trump cannot win, all I can think is: Aren't you the ones who told us that he couldn't top 30 percent, and then 40 percent, and then 50 percent in the Republican primaries?

Nor is it reassuring to read how happy the Clinton camp must be to be facing such a weak opponent. They need to be running scared — smart, but scared — now and for the next six months.

I do have faith in the American voter, I really do. But when two-thirds of the country is unhappy, a rational outcome can't be taken for granted.

 Fred Hiatt: Democrats should fear Donald Trump