Trump has sued two banks seeking to stop them from complying with subpoenas from congressional Democrats.
The bank denied Trump's campaign a loan to avoid "potential reputational issues."
Germany’s largest bank had been criticized in the past for failing to keep its ranks fresh with younger hires.
The cuts would represent about 10 percent of the Frankfurt-based bank’s workforce.
The firm is likely to dismiss some pricey recruits from recent years.
It marks a retreat from years of trying to compete with Wall Street and putting a renewed focus on Europe.
A retreat would mark a strategic shift under new CEO Christian Sewing.
BlackRock Inc.’s Larry Fink said Angela Merkel has provided “moral leadership” to the world.