Richard Grenell’s tenure as the nation’s top intelligence official may be short-lived, but he wasted no time this week starting to shape his team of advisers, ousting his office’s No. 2 official — a longtime intelligence officer — and bringing in an expert on Trump conspiracy theories to help lead the agency, according to officials.

Mr. Grenell has also requested the intelligence behind the classified briefing last week before the House Intelligence Committee where officials told lawmakers that Russia was interfering in November’s presidential election and that President Vladimir V. Putin of Russia favored President Trump’s re-election. The briefing later prompted Mr. Trump’s anger as he complained that Democrats would use it against him…

One of his first hires was Kashyap Patel, a senior National Security Council staff member and former key aide to Representative Devin Nunes, Republican of California and the former chairman of the House Intelligence Committee. Mr. Patel will have a mandate to “clean house,” CBS News reported, citing a person close to the matter.