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- Treasury Secretary Janet Yellen criticized the prior administration often in a speech on Thursday.
- She didn't name Trump, but said his appointees rolled back key regulations to protect the economy.
- Yellen's remarks come as the economy is a key issue for everyday voters and private sector leaders.
Speaking at the US Treasury Market Conference on Thursday, Treasury Secretary Janet Yellen referenced her predecessors — and their mistakes — often. She stopped short of naming former President Donald Trump or his appointees by name but made it clear that she thinks his administration threatened the country's financial security.