Michelle Elliott from Doncaster is one of the mothers to receive an apology from the Leeds Teaching Hopsitals NHS Trust in the report about mortality rates.
She believes her 13-year-old daughter Jessica waited so long for a heart transplant, after doctors said she wasn't sick enough, that she ended up having a stroke.
Jessica was finally referred to Newcastle where she had the operation - but the stroke has left her debilitated for life. Michelle, who has fought for all the families through her group Fragile Hearts says the apology should only be the beginning.
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The Rother Valley seat has been Labour for over 100 years - now all that has changed partly because most people in this area backed Brexit.