Jamie Dimon weighed a 2020 presidential run, sources say. Here's why he decided against it

Key Points
  • Dimon, 63, spent much of last year mulling a 2020 presidential run, sources said. He ultimately decided that he couldn't win either party's nomination. 
  • He is now focusing on ways to influence policy from his business positions, as evidenced by his 51-page shareholder letter released Thursday. 
Jamie Dimon, chief executive officer of JPMorgan Chase, attends a Strategic and Policy Forum meeting with U.S. President Donald Trump, not pictured, in the State Dining room of the White House in Washington, D.C. last February.
Andrew Harrer | Bloomberg | Getty Images

Whenever the inevitable question arose at events both public and private, Jamie Dimon would pause and smile before ruling out a presidential run.

But the billionaire J.P. Morgan Chase CEO actually spent much of 2018 weighing whether he should give it a shot, according to people with knowledge of the situation.

As last year drew to a close, however, Dimon concluded that he wouldn't run. With the Republican nomination unavailable and the leftward lean of the Democratic Party making the election of a Wall Street tycoon unlikely, Dimon begrudgingly decided that he would continue to serve his country from his current positions.

Dimon's thought process played out in public, at times. In September, at an event held at his bank's Park Avenue headquarters in New York, Dimon, 63, took several swipes at President Donald Trump and blurted out that he thought he could beat him in an election.

Jamie Dimon says the U.S. economy has left the poor behind
Jamie Dimon says the U.S. economy has left the poor behind

"I'm as tough as he is, I'm smarter than he is," Dimon said at the time. "He could punch me all he wants, it wouldn't work with me. I'd fight right back."

In the end, just like fellow New Yorker and billionaire businessman Mike Bloomberg, Dimon determined that he couldn't win in the current political environment. It's unclear if Dimon hired consultants or pollsters to determine his odds of winning. Dimon has called himself "barely a Democrat." During that September event, he said that he couldn't "beat the liberal side of the Democratic Party."

So Dimon, who identifies as a "proud American" and "complete patriot," is focusing on influencing policy where he can. As head of the largest U.S. bank by assets and chairman of the Business Roundtable, he's announced several big efforts to tackle urban decay and improve job prospects for minorities and ex-convicts.

And showing what has occupied his mind in recent months, on Thursday Dimon released a 51-page missive on ways to improve education, health care and other institutions in decline. In it, he encouraged Democrats and Republicans to understand each other's grievances and compromise for the good of the nation.

"If I were king for a day, I would always have a competitive business tax system and invest in infrastructure and education," he wrote. "I would not trade these issues off – I would figure out a way to properly pay for them."

WATCH: Dimon defends capitalism in annual letter

Jamie Dimon defends capitalism in his annual letter
Jamie Dimon defends capitalism in his annual letter