Former President Barack Obama suggested on Twitter on Tuesday that President Donald Trump “denied” warnings of the coronavirus pandemic.

“We’ve seen all too terribly the consequences of those who denied warnings of a pandemic,” Obama wrote.

The former president shared an article on Twitter about Trump rolling back fuel economy standards, and also accused the president of “climate denial.”

We've seen all too terribly the consequences of those who denied warnings of a pandemic. We can't afford any more consequences of climate denial. All of us, especially young people, have to demand better of our government at every level and vote this fall. https://t.co/K8Ucu7iVDK — Barack Obama (@BarackObama) March 31, 2020

“We can’t afford any more consequences of climate denial,” he wrote. “All of us, especially young people, have to demand better of our government at every level and vote this fall.”

Obama continues speaking up to criticize or challenge Trump’s response to the coronavirus, despite the president’s best efforts to fight and contain it.

Last week, the former president shared an article of “likely scenarios” of how to manage the virus.

“So much depends on our ability to make good decisions going forward along with our ability to remain resilient,” he wrote on Twitter after Trump said he was hopeful that he could loosen restrictions by Easter Sunday.

Here’s a useful overview of the likely scenarios that the world will be facing in the coming months while managing this pandemic. So much depends on our ability to make good decisions going forward along with our ability to remain resilient. https://t.co/uYpP1KfOUs — Barack Obama (@BarackObama) March 26, 2020

He also said that attacks on Obamacare were taking place “right when we need care the most.”