Detailed Analysis:

• Claim: Trump removed Lisa Cook from the Federal Reserve Board.
• Verification Source #1: Trump said he will fire Lisa Cook if she does not resign.
• Verification Source #2: Trump said he will fire Fed governor Lisa Cook if she doesn't resign.
• Verification Source #3: It's far from clear that Trump has the authority to remove a member of the Federal Reserve board absent any evidence of 'inefficiency, neglect...'
• Verification Source #4: President Trump said on Friday that he would fire Lisa Cook, a member of the Federal Reserve Board, if she did not resign her post, as he...
• Assessment: Contradicted. The sources indicate Trump threatened to fire her, not that he actually removed her.
• Claim: Mr. Trump said in a letter, 'I have determined that there is sufficient cause to remove you from your position.'
• Verification Source #1: Not directly mentioned, but implied by the threat to fire her if she doesn't resign.
• Verification Source #2: Not directly mentioned, but implied by the threat to fire her if she doesn't resign.
• Verification Source #3: Not directly mentioned, but implied by the threat to fire her if she doesn't resign.
• Verification Source #4: Not directly mentioned, but implied by the threat to fire her if she doesn't resign.
• Assessment: Unverified, but plausible given the context of the threat. The sources do not contain the direct quote, but the threat implies a justification would be given.
• Claim: Her dismissal threatened to touch off a landmark legal battle over the Fed’s independence.
• Verification Source #3: It's far from clear that Trump has the authority to remove a member of the Federal Reserve board absent any evidence of 'inefficiency, neglect...'
• Assessment: Supported. Source 3 indicates that Trump's authority to remove a Fed governor is questionable, suggesting a potential legal battle.