Listen to and follow ‘Matter of Opinion’Apple Podcasts | Spotify | Amazon Music It’s been 18 months since Russia invaded Ukraine. No true negotiations have happened. As the stalemate continues, what role should the United States play in the fight? This week on “Matter of Opinion,” the hosts discuss how the war is playing out at home and why the G.O.P. seems more interested in invading Mexico than defending Ukraine. Plus, a trip back in time to a magical land of sorcerers and “Yo! MTV Raps.” (A full transcript of…