Actor Jon Voight has called the impeachment effort against President Donald Trump a 'war against truths' and urged fellow citizens to stand in the president's defense.

Voight, 80, who is a noted conservative and longtime supporter of Trump's, made the impassioned plea in a video posted to Twitter late on Thursday.

'War. This is war against truths. This is a war against the highest noble man who has defended our country and made us safe and great again,' Voight said. 'Let me stand with our president. Let us all stand with our President Trump in a time of such evil words trying for impeachment.'

House Democrats rushed to open an impeachment inquiry this week, following the revelation of a CIA whistleblower's accusation that Trump pressured the Ukrainian president to investigate Joe Biden.

Actor Jon Voight is a longtime supporter of Trump, and is seen above introducing him before speaking at the Values Voter Summit in Washington, DC in September 2016

Coming Home star Voight said that he believes the impeachment effort itself may be criminal.

'This is a crime that the left are trying to force. This is a disgrace by such ignorant followers that have no truth of what truly has been brought back to our country,' he said. 'We have gained greatness. We have gained jobs. We have gained more than any president has promised.'

Voight, the father of actress Angelina Jolie, went on to say that he believes Democrats are 'corrupt' and suspect in their motives.

'This radical left are destructive. Their codes of what is supposed to be are corrupt with lies, deceits and anger,' he said.

'And we ask why: we ask how could a human being have such anger toward the greatness of our country's glory? I'll tell you why. Because for so long their anger has been growing and with such deep pain with no open heart for loving and seeing the truth.'

'Let me stand with our president. Let us all stand with our President Trump in a time of such evil words trying for impeachment,' Voight said in his new video

Voight takes photos with guests as they wait for Trump to speak at the 'Salute to America' Fourth of July event at the Lincoln Memorial in Washington, DC on July 4, 2019

Voight went on: 'The truth of what really matters is the productivity of what was promised and what we the American people of the United State were promised and have received.'

'And what does the radical left do for such greatness? They want to destroy. They want civilization to be run like a corrupt ring. I say stand now with Trump. Let truth prevail,' he continued.

'And may God show all the truth, that we are truly a nation stronger because of our president. The left are afraid, for their power is lessening with every deal that is accomplished by Donald Trump.'

'In the name of God, and his power for this nation, let us stay strong and without such evil among us. God Bless.'