The Problem unfolds for Democratic Convention Delegates

Today's polls on Real Clear Politics show what I believe will be the beginning of a growing trend. If Donald Trump can beat Hillary Clinton in places like Ohio, and Bernie Sanders can prevail over Trump there, the Democratic Party's superdelegates gathering in Philadelphia in late July will have a tough decision to make. Do they dump Clinton for Sanders?

Here, with weeks to go until the convention, is what today's polls look like. Call this a partial benchmark and a caution.