(REUTERS) — Roger Stone, a former political adviser to U.S. President Donald Trump, was ordered on Tuesday to appear in court this week over Instagram posts that chastised and appeared to threaten the judge presiding over his criminal trial.

U.S. District Judge Amy Berman Jackson said Stone would need to show cause at a hearing on Thursday as to why the posts did not violate a gag order in the case or the conditions of his release.

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