Trump made the comments during a meeting at the Oval Office of the White House with the Romanian President Klaus Iohannis on Tuesday.
"I think Jewish people that vote for a Democrat — I think it shows either a total lack of knowledge or great disloyalty," Trump told reporters.
His comments came amid his row with Muslim Reps. Rashida Tlaib (D-Mich.) and Ilhan Omar (D-Minn.), which involved asking Israel to block them from visiting Palestinian territories.
Trump has accused the congresswomen of anti-Semitism, defending his pro-Israel stance, as represented in the US “aid” to the Zionist regime.
"The concept of even talking about this... of cutting off aid to Israel because of two people that hate Israel and hate Jewish people, I can't believe we’re even having this conversation," Trump said in the Oval Office. "Where has the Democratic Party gone? Where have they gone that where they're defending these two people over the state of Israel?"
Hailed as a “great friend to the Jewish people” by Prime Minister Benjamin Netanyahu, President Trump has raised the US support for the Tel Aviv regime in part by recognizing Jerusalem al-Quds as the capital of Israel and Syria’s Golan Heights as Israeli territory.