She would have to be in the senate to take over senate leadership in the short term. For his seat itself, there's been house members - including moderates - starting to support the idea her primarying him when his term is up in 2028
Several members — including moderates — have begun voicing support for a primary challenge to Schumer, floating Reps. Alexandria Ocasio-Cortez (D-N.Y.) and Dan Goldman (D-N.Y.) as possible candidates, three House Democrats said.
https://www.axios.com/2025/03/14/house-democrats-angry-chuck-schumer-shutdown







He can realistically be stripped of senate leadership in the short term. Call your senators and tell them to support removing him from leadership