POLITICO: How the feds could have listened to Trump’s phone calls.

Related: Yes, There Could Be Serious Legal Problems if Obama Admin Involved in Illegal Surveillance. “Here are the problematic aspects of the Obama surveillance on Trump’s team, and on Trump himself. First, it is not apparent FISA could ever be invoked. Second, it is possible Obama’s team may have perjured themselves before the FISA court by withholding material information essential to the FISA court’s willingness to permit the government surveillance. Third, it could be that Obama’s team illegally disseminated and disclosed FISA information in direct violation of the statute precisely prohibiting such dissemination and disclosure. FISA prohibits, under criminal penalty, Obama’s team from doing any of the three.”

UPDATE: ‘Conducted at the behest of the Justice Dept.’: Fmr Bush AG Mukasey discusses Trump’s wiretap claims.

ANOTHER UPDATE: Lindsey Graham offers two ways Trump Tower wiretapping could be bigger than Watergate.