In this episode of The PDB Afternoon Bulletin:     Mexico’s president recently warned that the flow of migrants across the U.S. southern border will continue unimpeded unless the U.S. bows to his demands, leading to accusations that the leader is engaging in diplomatic blackmail. We’ll discuss former RNC chair Ronna McDaniel’s unceremonious firing from NBC News just four days into her new job with the network, which followed an absolute meltdown from MSNBC talent. To listen to the show ad-free, become a premium member of The President’s Daily Brief by visiting PDBPremium.com. Please remember to subscribe if you enjoyed this episode of The PDB Afternoon Bulletin.  Email: [email protected] Learn more about your ad choices. Visit megaphone.fm/adchoices