Senator John McCain's upcoming memoir will include some "no-holds-barred" opinions on President Trump. That's according to the book's publisher, Simon and Schuster.
Republican McCain is battling brain cancer at his home in Sedona, Arizona but remains an active player on Twitter.
He recently criticized Trump for making a call to Russian President Vladimir Putin, congratulating him on his re-election.
McCain said Putin won a sham election and argued that U.S. presidents do not congratulate dictators.
The publisher notes that McCain has never been afraid to buck trends or ruffle a few feathers.