Legendary news anchor Dan Rather got positively breathless over Friday’s rat-a-tat-tat of shocking reports about Donald Trump, Russia and his White House.

“I have to remember to take a breath,” Rather said in a Facebook post.

“Bam. Bam. Bam. Blockbuster developments hit the news cycle in rapid succession on an administration that many fear has been severely compromised, even while we hope it is not. Bam. Bam. Bam.

“My head spins. My heart sinks.”

Rather said the “bombshells ... rise to the level of screaming headlines worthy of a Hollywood script. President Trump apparently telling Russian officials that firing the FBI Director relieved ‘great pressure’ on him — courtesy of the New York Times.

“And then an even bigger development. ‘White House adviser close to Trump is a person of interest in Russia probe.’ Bam! From the Washington Post.”

After Rather’s post, the Senate Intelligence Committee said in a statement that the former FBI director, James Comey, would testify at a public hearing.

“The pressure mounts. The fantastic becomes the unbelieveable. The unbelieveable becomes the believable,” Rather posted.

He said the news reminded him of a “forest fire devouring dry timber. But what is burning is the very structure of our democracy. My hope is that it is such a raging inferno that even the most cynical members of Mr. Trump’s party cannot ignore the flames. We are well past wondering whether the smoke suggests a fire.”