Goldman Sachs CEO Lloyd Blankfein appears to troll Trump over 'infrastructure week'

Goldman Sachs CEO Lloyd Blankfein on Friday appeared to troll President Donald Trump's "infrastructure week" in his fourth-ever tweet.

The White House intended this week to focus on Trump's infrastructure initiatives, but it instead revolved around former FBI Director James Comey's testimony over his firing and the investigation into possible collusion between the Trump campaign and Russia.

Blankfein tweeted:

"Just landed from China, trying to catch up.... How did 'infrastructure week' go?"

Friday's tweet also echoed the tweet Blankfein sent earlier this week, in which he urged the U.S. to invest in infrastructure to keep pace with China:

"Arrived in China, as always impressed by condition of airport, roads, cell service, etc. US needs to invest in infrastructure to keep up!"

Blankfein has been a Twitter member since June of 2011 but hadn't tweeted until June 1 of this year, when Trump said the U.S. would withdraw from the Paris climate-change accord.

Watch: Blankfein has sense of pride in Goldman alums in Trump Admin.