Politico's Inside Congress Live newsletter leads with Senator Chris Van Hollen of Maryland ruling out a 2028 presidential run as he challenges Chuck Schumer for Senate majority leader, a contest Bernie Sanders and others have joined while Schumer retains the endorsement edge. The issue also covers Mike Thompson's narrow loss to Eric Jones, Maxine Waters's fight with Sean Casten for the Financial Services gavel, Jamie Raskin's Judiciary chair bid, Jim Jordan's delayed House GOP rules debate, Bill Hagerty's push to disbar Jack Smith, and Ted Cruz's postponed classified AI briefing.