Mary Ann Mendoza (From Archive)PHOENIX - FOX News has confirmed that Mary Ann Mendoza, a Mesa mother who became outspoken on the issue of illegal immigration following her son's death, will no longer speak at the Republican National Convention following an antisemitic controversy on Twitter.In the hours prior to her now-cancelled speech to the RNC, Mendoza was embroiled in further controversy, apologizing for retweeting a "very long thread" without "reading every post within the thread."According to reports by The Daily Beast, the tweet was linked to a lengthy thread from a QAnon-linked conspiracy theorist who laid out a view of the world that is anti-Semitic."The thread also promoted 'The Protocols of the Elders of Zion,' an anti-Semitic.