Hours after his inauguration, President Joe Biden signed over a dozen executive orders to begin the mountainous task of undoing the policies set forth by former President Donald Trump.
One of these orders recommitted the United States to the Paris Climate Accord, the landmark 2016 international agreement to reduce the rate of rising global temperatures and hold countries accountable for combatting the ever-urgent climate crisis.
The Trump administration's official withdrawal from the agreement in 2019 was one of many environmental protections rolled back by the White House which Biden intends to restore.
Disgraced Senator Ted Cruz (R-TX), who had attended Biden's inauguration hours earlier, decried the move on Twitter.
Cruz said of the executive order:
"By rejoining the Paris Climate Agreement, President Biden indicates he's more interested in the views of the citizens of Paris than in the jobs of the citizens of Pittsburgh."
The Paris Climate agreement is not, in fact, directed to the citizens of Paris, but signed by nearly 200 countries and incentivizes measures to offset the climate crisis within their own borders.
Teenage climate activist and TIME's former Person of the Year, Greta Thunberg, issued a tongue-in-cheek rebuke to Cruz's apparent misunderstanding of the agreement and its purpose.
People cackled at the activist's comeback.
Thunberg was far from the only one to push back against Cruz's tweet.
Cruz also heavily amplified Trump's election lies, particularly in regards to the state of Pennsylvania—including Pittsburgh, whose votes he tried to get thrown out during the joint session to certify President Biden's victory.