She was responding to questions on reports that a summit meeting at Trump's Mar-a-Lago resort in the US state of Florida has been put off as China considers the US President as "unreliable" in view of him walking away from talks with North Korean leader Kim Jong-un.
Sanders was asked about the president's controversial statement after white supremacists clashed with counter protesters at a rally in Charlottesville, Va., in August 2017 that there were "good people on both sides".
Several reporters asked Sanders on Monday if Trump really thinks Democrats "hate" Jews, but she wouldn't specifically answer the question.
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Democrats in Congress, along with The New York Times and the Miami Herald, have called on Acosta to resign as labor secretary.
"I think that's a question you ought to ask the Democrats", Sanders responded, prompting confusion and mockery on Twitter.
"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?" The President is going to make a deal if it's a good deal. "Because, obviously, Sarah Sanders is not going to want to say something from the podium that might get her hauled into the special counsel's office".
"We're continuing the negotiations with China", Sanders said. I think that it's time to stop giving him a platform. "The president has been clear on what his position is, certainly what his support is for the people and the community of Israel", she added. 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. The president has been clear on what his position is.
House Speaker Nancy Pelosi has asserted that Ilhan Omar's anti-Semitic comments were just a different "use of words".