CBS News expert: Trump sought regime change in Iran, but the change first started in the United States. Terry Sullivan: "Donald Trump intended to bring about regime change in Iran, but in the end he brought about regime change within the United States, much faster than expected. "The results were less a referendum on the policies of the Democratic Party or its candidates than a referendum on Trump's performance and his presidency."

CBS News expert: Trump sought regime change in Iran, but the change first started in the United States. Terry Sullivan: "Donald Trump intended to bring about regime change in Iran, but in the end he brought about regime change within the United States, much faster than expected. "The results were less a referendum on the policies of the Democratic Party or its candidates than a referendum on Trump's performance and his presidency."