While he was once known primarily for directing hit films like “A Few Good Men” and “Misery,” Rob Reiner is known these days more as one of President Donald Trump’s most consistent and outspoken Hollywood critics.

Reiner, 71, took a stand against the proposed border wall between Mexico and the United States through Twitter on Thursday and he held nothing back.

Reiner called the proposed wall “idiotic” and “pointless.” He offered no alternative for border security in a tweet directed at the president.

“On his idiotic pointless wall, the fool is worried about looking foolish,” the “Stand by Me” director tweeted. “Rest easy. You’re way past looking foolish. You’ve been a world class moron your whole life. #TrumpResign”

Reiner has been especially critical of Trump and his administration in the last week. He previously called Trump a “lying malignant narcissistic cancer.”

“Where to begin. The corruption & criminality is overwhelming,” the filmmaker tweeted on Wednesday. “But starting tomorrow finally there will be accountability.”

He added, “And when the dust settles, we will be rid of this lying malignant narcissistic cancer. Happy New Year.”

In another tweet anticipating the new Democratic control of the House, Reiner suggested Trump possesses “breathtaking stupidity.”

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“Is there something more moronic than a f***ing moron? Because every time this idiot opens his mouth, he vomits up breathtaking stupidity. Tomorrow can’t come quick enough,” Reiner tweeted.

Reiner also previously called Trump “mentally unstable” and a “criminal.”

He has also suggested the president’s supporters are racist.

Reiner has directed a handful of massively successful films, such as “The Princess Bride” and “When Harry Met Sally,” but the filmmaker has not been responsible for a hit film since 2007’s “The Bucket List,” which is famous for sporting one of Jack Nicholson’s final performances.

Reiner has directed six feature films since “Bucket List” — they’ve all flopped.

The most successful of the bunch, “And So It Goes,” earned just over $15 million.

“Bucket List,” one the other hand, earned over $93 million.

Reiner’s most recent film, “Shock and Awe,” was released over the summer and audiences hardly noticed it. The film was about a handful of journalists questioning America’s invasion of Iraq in 2003.

Beyond directing, Reiner is also known for his acting. He most famously appeared on the television series “All in the Family” as the character of Michael “Meathead” Stivic.

He more recently appeared in a handful of episodes of the television series “New Girl.”

He also had a small part in the hit 2013 film “The Wolf of Wall Street.”

Check out the trailer for Rob Reiner’s “Shock and Awe” below: