As the COVID-19 death toll passed 300,000 in the U.S. on Monday, President Trump’s niece, Mary Trump, reflected on her uncle’s handling of the pandemic.

“This is, at best, criminally negligent homicide and at worse, mass murder,” she said. “And I’m leaning toward mass murder, because he’s continuing to do nothing even though we have at our disposal means to stop this.”

Monday also marked the official certification of Joe Biden’s election victory, raising further concerns about what the president might do next, according to his niece.

“The problem for us now — this is really the end of the road,” she told Jim Braude on Greater Boston, where she appeared along with former Trump Organization top executive Barbara Res. “There really aren’t any other avenues to pursue, which means he’s going to become increasingly desperate. He’s going to continue to sow division because, if he feels like he’s going down, he’s literally going to try to take all of us down with him. Let’s face it, he’s committing sedition every single day. I can only imagine what’s going on behind the scenes in terms of what he’s going to smash on his way out the door.”