Far-right political pundit Ann Coulter sparked outrage on Election Day for appearing to invoke Nazi-era racial purity laws in a tweet lamenting Donald Trump’s meager support among America’s immigrant communities.

In a tweet, Coulter asserted the Republican candidate would easily win the presidential election if the children and grandchildren of immigrants were not permitted to vote.

“If only people with at least 4 grandparents born in America were voting, Trump would win in a 50-state landslide,” the outspoken Trump supporter posted early Tuesday morning.

Social media users were quick to condemn Coulter’s remark as xenophobic, anti-Semitic and racist.

Others pointed out the irony in Coulter’s logic, saying that Trump’s own immigrant parents would preclude the GOP candidate and his children from voting.

Less than an hour later, Coulter attempted to walk back her remark, claiming she was referring to wider family ancestry.

Coulter is no stranger to anti-Semitic controversy.

After Hillary Clinton won the Democratic Party’s nomination in July, Coulter tweeted: “Where are the Bernie supporters tonight? Did Hillary have them gassed?”

She was roundly criticized for the apparent Holocaust reference.

In May, Coulter was asked in an interview if her anti-immigration stance would have applied to Jewish immigrants to the US in the 20th century.

“Oh God, not the Jews again,” she responded to a BBC Radio 4 host.

During a Republican debate last September, Coulter tweeted “how many f***ing Jews do these people think there are in the United States?” She later doubled down on the tweet, calling it “pro-Semitic.”