To the Editor:

Re “White House Withdraws Jackson Nomination for V.A. Chief Amid Criticism” (nytimes.com, April 26):

The fact that Dr. Ronny L. Jackson withdrew his nomination as secretary of veterans affairs reinforces the failure of Donald Trump as an effective administrator. Additionally, it reveals that President Trump’s vetting process (if there is one) is not working.

Taken together with the wide turnover of other people from the Trump administration, it is truly a reflection of who Mr. Trump is: a reactive and emotional manager, not thoughtful, knowledgeable, detailed or a rational leader.

So much for his campaign proclamations that he will select only “top-of-the-line professionals” and only the “best and most serious people” to fill his administration. Sure thing, Mr. Trump!

MICHAEL HADJIARGYROU

CENTERPORT, N.Y.

To the Editor:

“What do you need this for?” President Trump said he asked Dr. Ronny L. Jackson, his then foundering nominee to head the Department of Veterans Affairs.