Whistleblower Edward Snowden is echoing Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' MORE, after presumptive Republican presidential nominee Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE backed down from an offer to debate the Democratic presidential candidate.

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“Who would have imagined Donald Trump’s greatest fear was an economic debate?” Snowden tweeted Saturday.

Who would have imagined Donald Trump's greatest fear was an economic debate? — Edward Snowden (@Snowden) May 28, 2016

Sanders asked Trump on Friday, “What are you afraid of?” after the billionaire said he would not debate Sanders.

Trump backed out of the debate just two days after agreeing to it in theory ahead of California’s primary, saying it “seems inappropriate” to debate the “second-place finisher.”