
GOP Sen. Mitt Romney of Utah reiterated demands to call for John Bolton to testify, saying he’s had discussions with some of his colleagues on the matter.
He predicted that it's "increasingly likely" that there would be others who would join him.
"I think it's increasingly likely that other Republicans will join those of us who think we should hear from John Bolton, Romney said."
The numbers: If all 47 senators who caucus with the Democrats vote for witnesses, at least four GOP senators would need to join them in order to pass a motion.
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CORRECTION: An earlier version of this story misquoted Romney. He said it is "increasingly likely that other Republicans will join those of us who think we should hear from John Bolton."