Money Quote -
But what about Ryan? Should he get a pass because he heard this from a witness before Congress? It really depends on the circumstances. In this case, he referenced the story in a major speech. The burden always falls on the speaker and we believe politicians need to check the facts in any prepared remarks.
In this case, apparently, the story was too good to check. But a simple inquiry would have determined that the person telling the story actually is an advocate for the federal programs that Ryan now claims leaves people with “a full stomach and an empty soul.” So he also earns Four Pinocchios.