How Does the Post Know that the Ryan-Wyden Plan Will "Preserve" Medicare?

Whether or not the premium support plan put forward by Representative Paul Ryan and Senator Ron Wyden would preserve what people understand as "Medicare" is a topic open to debate. Nonetheless the Post asserts that in both the headline and the first sentence of its article that the plan will preserve Medicare.

Of course the Post supports such premium support plans as it has repeatedly said on its editorial pages. However serious newspapers maintain a distinction between their editorial...