So far, it appears the only report of this alleged incident (and Manchin being cornered in an old building) comes from Climate Defiance. For all we know, the "old building" was his intended destination. I did see a photo of protesters with signs saying, "Manchin is killing us" and "Ban Fossil Fuels." Of course, the bullhorn they were using to shout their message just happens to be made from plastics formulated from, you know, fossil fuels.