The word "mantle."

I was struck by Donanld Trump's use of the word "mantle" as in, "I'll take the mantle for shutting down the government." That's because Mr. Trump's vocabulary has been rated as not much more than six-grade level. This is not a very common word even for adults and that shocked me coming from Trump. It was uttered spontaneously and I'm wondering where the hell did he learn to use it that way. My only encounter with this word was when my mom referred to the ledge above our fireplace as the "mantle" or "mantle piece." Several dictionary entries most frequently describe it basically as "a cloak." I did an image search and, sure enough, there were cloaks, robes worn by kings and, yes, fire places with an outer extrusion (top and sides) -- which could match the metaphor of a cloak. There was also the earth's mantle which is the bulk of the earth's weight and surrounds the earth's core. Mr. Trump used the word in the sense of "owning" something, or wearing a garb that uniquely identifies him alone or as someone who solely bears the weight (or the responsibility of) something. I have to wonder if there are other notable instances of the word "mantle" being used this way.