JMart\u2019s latest column is hot off the presses and already blowing up group chats on Capitol Hill: \u201cSinema Trashes Dems: \u2018Old Dudes Eating Jell-O\u2019\u201d\nAs her fundraising efforts plow forward, Sen. Kyrsten Sinema (I-Ariz.) \u201chas used a series of Republican-dominated receptions and retreats this year to belittle her Democratic colleagues, shower her GOP allies with praise and, in one case, quite literally give the middle finger to President Biden\u2019s White House,\u201d Martin writes. \u201cSpeaking in private, whether one-on-one or with small groups of Republican senators, she\u2019s even more cutting, particularly about Senate Majority Leader Chuck Schumer, whom she derides in harshly critical terms, according to senior Republican officials directly familiar with her comments.\u201d\nWhite House chief of staff Jeff Zients has been President Joe Biden's top aide for less than two months \u2014 and grumbling has already erupted both inside and outside the administration over whether he\u2019s up to the job.\nIn a story out this morning, Adam Cancryn, Eugene and Nicholas Wu spoke with 16 administration officials, lawmakers and others with knowledge of internal White House dynamics, and found widespread concerns \u201cover whether Zients has the political instincts and Capitol Hill relationships to deftly navigate a crucial period ahead of Biden\u2019s anticipated reelection run.\u201d\nAnd, tech reporter Rebecca Kern stops by for a preview of TikTok CEO Shou Chew's hearing \xa0before the House Energy and Commerce committee.