Jimmy Kimmel/Instagram; Bruce Glikas/WireImage Jimmy Kimmel is feeling grateful after his 7-year-old son William "Billy" John successfully underwent his third open-heart surgery. On Monday ...

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A post shared by Jimmy Kimmel Live (@jimmykimmellive) Kimmel then aired a super-cut of Trump praising his son’s height and referring to him as a “tall student” during several public appearances.

News tonight, Feb. 24, at 11 p.m.) Having previously received an outpouring of support from the health community during his son's medical ordeal, Jimmy Kimmel — who also shares 10-year-old ...