© Associated Press/Michael Sohn/ FileIn this April 6, 2019, file photo, former President Barack Obama attends a town hall meeting at the "European School For Management And Technology" (ESMT) in Berlin, Germany.
"A very serious situation," Mr. Trump tweeted about the allegations of Mr. Obama's complicity. "Can never be allowed to happen again! DRAIN THE SWAMP."
The book by Andrew McCarthy, titled Ball of Collusion, was discussed Thursday morning on Fox & Friends, one of the president's favorite shows. The author contends that the Obama administration exploited its control of law enforcement and intelligence agencies to help Hillary Clinton and undermine Mr. Trump in 2016 in what he calls "a scandalous abuse of power."
The president quoted Fox host Steve Doocey saying, "Plenty of information that Obama was informed & knew exactly what they were doing. There's plenty of indication, we don't have to speculate."
Mr. Trump repeatedly has pushed for an investigation into the origins of the FBI's counter-intelligence probe of his campaign, and the Justice Department is reviewing the matter. The president has sometimes suggested that Mr. Obama likely knew about phony premises for the Russia investigation.
Comment: The evidence of Obama's complicity seems pretty clear: