Politico's Inside Congress newsletter leads with Rep. Sean Casten challenging Rep. Maxine Waters for the House Financial Services gavel, saying he's "looking at the entire caucus" and won't rule out staying in after a steering committee vote. It also reports Chris Van Hollen's challenge to Chuck Schumer for Senate majority leader, Jensen Huang's resignation as Nvidia CEO amid spy allegations and Senate Banking hearings demanded from him and Commerce Secretary Howard Lutnick, a possible December showdown over Iran war funding, Jeff Merkley taking the Environment and Public Works gavel, and Jim Jordan poised to lead a shrunken House GOP minority.