A key congressional committee on Monday released a note and sexually suggestive drawing containing what appeared to be Donald J. Trump’s signature that was included in a book for the disgraced financier Jeffrey Epstein’s 50th birthday in 2003 — a drawing that Mr. Trump has insisted he did not create. The drawing — a figure of a naked woman with “Donald” written below her waist — was part of a batch of documents turned over by Mr. Epstein’s estate to the House Oversight Committee, which had...