(CNBC) -- Former Trump campaign manager Corey Lewandowski is slated to testify Tuesday before the House Judiciary Committee as the Democrat-led panel continues to gather evidence toward a possible push to impeach President Donald Trump.
Their fact-finding efforts may be stymied by the White House, however, which told the committee late Monday that it had directed Lewandowski not to discuss any post-election interactions with Trump beyond those already detailed in former special counsel Robert Mueller’s report on Russian election meddling.
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Lewandowski, 45, managed Trump’s campaign from January 2015 until his firing in June 2016, and remained his close confidant after the 2016 presidential election. As he publicly considers launching a Senate challenge against New Hampshire Democrat Jeanne Shaheen, Lewandowski has welcomed the opportunity to testify publicly before Congress.