Trump Jr. was active in his father's presidential campaign. He cooperated with Russia in their interference in the 2016 United States elections and had a meeting with a Russian lawyer who promised damaging information about the campaign of Hillary Clinton in the 2016 presidential election. He has promoted several conspiracy theories as well as false information. Trump has engaged in attempts to overturn the 2020 United States presidential election following his father's electoral defeat; he has promoted the stolen election conspiracy theory and advocated "total war" instead of completion of vote counting. He spoke at the rally that encouraged a mob to attack Congress, where he threatened Trump's opponents that "we're coming for you." On January 11, 2021, D.C. attorney general Karl Racine said that he is looking at whether to charge Donald Trump Jr. with inciting the violent attack on the U.S. Capitol in the criminal investigation into the attack. Trump Jr. is also a person of interest in a criminal investigation into possible fraud in D.C.