"Does he understand the magnitude of the job? Did he just run for president to get even with President Obama who once made jokes about him at a White House Correspondents’ Dinner?"

Barbra Streisand has made it abundantly clear that she is not a supporter of President-elect Donald Trump.

On the eve of the real estate mogul's inauguration, the Oscar-winning actress/singer penned a scathing new essay for The Huffington Post titled "Clueless, Reckless, Graceless, Mindless and Heartless: Our President Elect," in which she writes that Trump makes her "deeply concerned" for the nation and the world.

"He has demonstrated he is both dangerous and unfit for office," she says after listing previous notable commanders in chief who achieved great things. "Does he understand the magnitude of the job? Did he just run for president to get even with President Obama who once made jokes about him at a White House Correspondents’ Dinner? Does he want to get rid of Obamacare just because of the name?"

The entertainment legend clarifies that it isn't just that Trump is bringing into office economic policies that she disagrees with or an approach to health care funding that could "hurt millions of people." And it isn't a simple Democrat-versus-Republican thing, either. "This is a man who, on record and often on video, disparaged or outright ridiculed women, immigrants, the disabled and others," she says. "He lost the popular vote by nearly three million votes, and yet cannot seem to grasp that the president’s obligation is to at very least attempt to unite and respect all Americans."

"I have great respect for the experienced politicians who have served our nation with sincere regard to improve and protect the republic, even those I have often disagreed with. I cannot, however, respect a racist, xenophobic sexist who puts us all at risk with his behavior," she continues.

In the essay, Streisand also touches on Trump's alleged ties to Russia, the former Celebrity Apprentice host's late acknowledgement of Russia's involvement in manipulating the American election and the controversy over his refusal to divest completely from his vast web of businesses while in office. "Experts say he will be in Violation of Article 1, Section 9 of the Constitution on the first day of his presidency. His claim that he will never talk to his sons about his business is laughable," she writes.

Streisand also frets over Trump's frequent tweets aimed at his "haters" and "enemies," questioning whether he has the magnanimity that has typified past presidents or the gravity necessary for the highest office in the land. "We can expect Trump, as Trevor Noah pointed out, to spend the next four years denying things he has said that are documented in print and on video," she says. "In other words, we can expect him to lie, and lie prodigiously. He projected on Hillary Clinton his own characteristics, 'corrupt,' 'crooked' and 'lying.'"

Her hope is that our elected representatives will do all they can to make sure "some semblance of justice" is served in America during Trump's term, which begins Friday with his inauguration as 45th president of the United States. "The rest of us must remain vigilant. Write your representatives and senators. Make donations to groups that fight for equal rights, civil rights, freedom of the press, climate change measures, gun control regulation and healthcare mandates. Protest. Speak up. Help others. We are all in this together, and it is our right and responsibility to protect our freedoms and help our fellow citizens."

Read the full essay here.

This article originally appeared on Billboard.com.