Sanders was pressed by reporters on comments allegedly made by President Trump last week to Republican donors.
One such remark reportedly referred to Minnesota Rep. Ilhan Omar (D) and the controversy surrounding her criticism of the pro-Israel lobby.
The White House recently addressed President Trump's former associate's, who are under fire from the Mueller probe.More news: New Zealand calls for vaccination against measles following outbreak
Acosta asserted that Trump slamming the Democrats for hating Jews is "patently untrue".
Acosta also speculated on why be believes Sanders has been avoiding regular briefings.
"Democrats don't hate Jewish people, that's just silly", Acosta said.
"Just to get back to John and the question about the president's comments about Democrats and Jewish people, isn't that kind of rhetoric just sort of beneath everybody?"More news: Verizon's 5G network is coming to Chicago and Minneapolis on April 11
Three days later, Sanders insisted Democrats - rather than the President - answer for their views.
"Do you think that the president has thought, at all, going into the 2020 campaign that the rhetoric just needs to be lowered?" the CNN White House correspondent asked.
"The President has condemned neo-Nazis and called them by name, which is what we are asking Democrats to do when they see the same type of hatred", she said.
Sanders was referencing Omar's comments when, talking in a panel about the Israeli-Palestinian conflict, she said she wanted to "talk about the political influence in this country that says it is okay to push for allegiance to a foreign country".More news: Facebook filed a lawsuit against the Ukrainians
WASHINGTON, DC - AUGUST 02: CNN reporter Jim Acosta reports from the briefing room at the White House, on August 2, 2018 in Washington, DC. Again Sanders tried to sidestep the question, saying she wasn't going to comment on "a potentially leaked item" and continuing to insist Democrats are anti-Semitic. During the now-infamous moment, Acosta refused to pass the microphone to a female White House aide. According to a Pew analysis of the current congressional class, only two Republican members of the House are Jewish, while more than half of Democrats' non-Christian members are Jewish.
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