The stepdaughter of Vice President Kamala Harris is publicly raising money for Gaza, The Post has learned. Ella Emhoff, 24 — whose father, first gentleman Doug Emhoff, is Jewish — affixed a fundraising drive “supporting urgent relief for Gaza’s children” on her personal Instagram account. It makes no mention of the scores of Israeli children murdered among the 1,400 Israelis killed by Hamas terrorists on Oct. 7. Her promotion puts the funding appeal in front of her 315,000 Instagram followers. The fundraiser, which has netted more than $7.8 million so far, is being operated by the Palestinian Children’s Relief Fund,...