Donald Trump and Peter Thiel Getty/Drew Angerer Peter Thiel's support of Donald Trump caused friction in the Facebook boardroom.

That's because Netflix CEO Reed Hastings, who, like Thiel is a member of Facebook's board, chastised Thiel for supporting then-Presidential candidate Trump, according to a report in The New York Times.

Hastings went so far as to give Thiel a bad grade, citing poor judgment, while carrying out his official duties of assessing fellow board members.

Hastings, who supported Hillary Clinton in the presidential election, is the chairman of the Facebook board committee tasked with judging the performance of the board directors.

An e-mail from Hastings to Thiel, obtained by the newspaper, reads in part:

"I’m so mystified by your endorsement of Trump for our President, that for me it moves from ‘different judgment’ to ‘bad judgment.’ Some diversity in views is healthy, but catastrophically bad judgment (in my view) is not what anyone wants in a fellow board member.”

In the summer of 2016, Thiel took the stage at the Republican National Convention to express his support for Trump — support that earned him the ire of many in the largely left-leaning Silicon Valley.

The New York Times' Nick Wingfield tweeted the full text of the e-mail, which you can read here:

Both Thiel and Hastings remain on Facebook's board. Spokespeople for Facebook, Netflix, and Thiel did not immediately respond to a request for comment.

Netflix CEO Reed Hastings Ethan Miller/Getty Images

Publicly, however, Facebook has been resolute in its support of Thiel, no matter his political views: In October, Facebook CEO Mark Zuckerberg sent a memo around to employees saying that "we can't create a culture that says it cares about diversity and then excludes almost half the country because they back a political candidate."

Meanwhile, recent reports from Buzzfeed News indicate that Thiel's support for Trump may be eroding.

Read the full report at the New York Times here.