Eric Trump on Tuesday slammed the Russia collusion investigation as "a total hoax" — telling Newsmax TV that the media was keeping it alive only because no matter what President Donald Trump does, "he's going to get hit."

"They tried really hard," Trump, 33, told "The Joe Pags Show" in an exclusive interview of the Russia probe. "They tried really hard, but it didn't fly.

"And everybody realizes the whole thing was a total hoax and a spoof and that there was nothing there.

"I'm proud of him," he continued. "Listen, no matter what we do, we're going to get hit."

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Eric Trump, the third of President Trump's five children and his second of three sons, is a trustee of the Trump Organization.

"Politics is nasty," he told Pags. "It's the nastiest business I've ever seen.

"It's just the evilness and the hatred in that world is unlike I could've ever fathomed before.

"And no matter what he does, they're going to hit him on it — and they're going to go after him," Trump added.

"It's the media, the mainstream media, who does not want him to succeed. No matter what he does, he's going to get hit."

How does the president's son deal with the negative attacks on his father?

"You have to tune it out," he told Pags. "Obviously, you have to be tuned into it — because you need to know what's being said.

"At the same time, you have to take it all with a grain of salt," he added. "If they weren't talking about you, you wouldn't be doing something right.

"It's important to keep it in context — otherwise, quite frankly, you'd probably end up killing yourself out of depression," Trump said.

"But he's doing a great job.

"He's kept every single promise that he's made," he added. "He's doing everything that he said he would do — and we have a better country because of it."