It was a busy day for the Trump Transition team as ExxonMobil CEO Rex Tillerson officially got the nod as nominee for Secretary of State.  Reportedly, former Texas Governor Rick Perry has been asked to be Secretary of Energy.  Tillerson’s nomination is putting some strains on GOP unity as several lawmakers are raising questions about Tillerson’s connections to Russian president Vladimir Putin.  Adam Reilly (@reillyadam) fills in for Jim Braude today and talks to Louis Murray (@louislmurrayjr1), a Trump delegate to the Republican National Convention, and Cambridge City Councilor Nadeem Mazen (@nadeemtron), who first supported Bernie Sanders and then Hillary Clinton.

Diagnosing a concussion is less than an exact science, but that could change with new technology being developed by a local company.  WGBH News’ Stephanie Leydon (@stephanieleydon) has details of a blood test that could improve how this type of head trauma is diagnosed.

Michael Lewis (@michaeljlewis75) is known for books like Money Ball and The Big Short.  Adam talks to him about his latest work, The Undoing Project: A Friendship that Changed our Minds.