From potential Treasury Secretary to a $5 billion lawsuit: Trump and Jamie Dimon's on-again, off-again relationship

A composite image of Jamie Dimon (left) and Donald Trump (right).

Tom Williams/CQ-Roll Call, Inc via Getty Images and Harun Ozalp/Anadolu via Getty Images

• JPMorgan CEO Jamie Dimon and Donald Trump have had a testy relationship over the years.
• Their relationship has been marked by public clashes and periods of close alignment.
• Now it's escalated into a $5 billion lawsuit against Dimon and JPMorgan over alleged debanking.

Jamie Dimon is known for saying what he thinks.