President Donald Trump fired Veterans Affairs Secretary David Shulkin by tweet Wednesday in the wake of a bruising ethics scandal and a mounting rebellion within the agency, and nominated White House doctor Ronny Jackson to lead the agnecy.

In a statement, Trump praised Jackson as “highly trained and qualified.”

Jackson has served since 2013 as the Physician to the President, and gained a national profile earlier this year for holding a sweeping press conference on the president’s health in which he praised the president for having incredible genes.

Take a look at Donald J. Trump (@realDonaldTrump): https://twitter.com/realDonaldTrump?s=09