Controversy has erupted in Irvine, California, over political content published in a high school yearbook that some parents claim is biased in favor of President Joe Biden and Democratic causes. Irvine parent David Whitley told The Epoch Times that content published in the yearbook shows overt political bias and urged more parents to stand up against it. In a June 1 letter he wrote to the Northwood High School staff, Whitley called the political section of the yearbook “a complete outrage.” “It’s pure political propaganda, it’s educational indoctrination, and it’s an abdication of your responsibility as leaders and educators in our public schools,” Whitley said in the letter obtained by The Epoch Times. Whitley told The Epoch Times that it’s obvious that the content was written with a “liberal, Democrat, Biden supporter” slant which depicted former President Donald Trump as a villain and Biden as a hero. “There’s no specifics …