Tech billionaire Elon Musk hit back at Sen. Elizabeth Warren (D-MA) with a series of snarky memes after she decried possible conflicts of interest between him and President-elect Donald Trump. Warren sent a letter to Trump questioning whether he had put ethics rules in place for dealing with Musk's governmental work as the X executive plans to co-lead the Department of Government Efficiency.

Progressive Senator Elizabeth Warren challenged Donald Trump to set ethics guardrails to control a “massive conflict of interest” posed by Elon Musk’s unofficial role in the president-elect’s transition and incoming administration.