Bolton, who was sacked by Trump in September, has previously said he would be willing to testify.
The text is updated.
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2020-01-22T06:25:02.148Z
Senate Republicans block Democrats' request to have President Trump's former national security adviser John Bolton testify, US media reports.
Bolton, who was sacked by Trump in September, has previously said he would be willing to testify.
The text is updated.
Source: svt