I found this information at Alpha News:
This is the first time veterans have had the opportunity to be in front of him after the national media exposed his stolen valor,” said one veteran who was there. “They finally had the opportunity to unload on him, so they did.”
Minnesota Gov. Tim Walz was heckled and booed during his speech at the Capitol for Veterans Day on the Hill Wednesday.
“You’re a coward,” some veterans shouted as Gov. Walz began speaking from a podium. “Shut your f—ing mouth.”
I could see that in the video, he got heckled, the fake site in the OP has him driven from off a stage by boos.
Look at the headline and the OP and then look at the video.