Playbook editor Mike DeBonis and deputy editor Zack Stanton break down the weekend in politics, including the Republican Jewish Coalition conference in Las Vegas, NV.  “2024 Republican rivals put Trump on notice,” by Alex Isenstadt in Las Vegas: “If former President Donald Trump thought his early 2024 announcement would cow prospective Republican primary rivals into submission, he clearly miscalculated. “At this weekend’s Republican Jewish Coalition conference, a parade of ambitious Republicans hit all the notes that politicians eyeing future campaigns for the White House typically do. Their tones and messages varied — few called out Trump by name — but collectively they made clear they are not going to back down to the former president after a third consecutive poor election with him at the helm. What the contenders sound like: “Mike Pompeo, Trump’s hand-picked secretary of State and CIA director, warned that for Republicans to win elections, they can’t simply ‘go on Fox News or send tweets.’ Former New Jersey Gov. Chris Christie, who ran Trump’s transition, said Republicans were losing because ‘Donald Trump has put himself before everybody else.’ “Nikki Haley, Trump’s U.N. ambassador who said last year she wouldn’t run if her former boss did, has apparently changed her mind. She used her Saturday evening speech here to say she was looking at running in a ‘serious way,’ and to call for ‘a younger generation to lead across the board.’ … “‘He’s not going to have the financial support he had anymore, he’s not going to have the internal support that he had before,’ said New Hampshire Gov. Chris Sununu, whose state hosts the first-in-the-nation GOP primary. ‘And so therefore, there’s opportunity there. That political weakness is blood in the water for some folks.’” Subscribe to the POLITICO Playbook newsletter Raghu Manavalan is the Host and Senior Editor of POLITICO's Playbook Daily Briefing.Jenny Ament is the Executive Producer of POLITICO Audio.