Liberal creep is liberal bias that gradually creeps or distorts an entry, definition, explanation, description, or historical account.
Former Utah state Sen. Bill Wright may have been the first to coin this term in spring 2008 when he "warned of liberal creep — the 'education of indoctrination' — in which the media peddle "socialism and programs. We have been so dumbed-down, so indoctrinated with all this information we’re in a haze; we can't see through it. We must find out for ourselves."
Examples of liberal creep include:
- Ronald Reagan left the White House with the best approval ratings of any president, up to that time, at the end of his term, yet the media and history books have since relentlessly tried to downplay and distort his political achievements.
- Reverse to the above example, Bill Clinton  left office after a failed impeachment attempt on perjury charges, yet liberal creep ensures that this is downplayed and distorted.
- Many early scientists such as Isaac Newton and Galileo Galilei were heavily influenced by Christianity and would never have made their important discoveries without their faith in Jesus Christ, yet that faith has since been downplayed in liberal atheistic public school textbooks and Wikipedia.
- The ferocity and savageness of the Native Americans towards American settlers has gradually been downplayed, while the relocation of the Cherokee has been gradually inflated to the point that some liberal textbooks treat it as an atrocity comparable to the Holocaust. Similarly, there has been an increase in denial of the many technological and spiritual improvements the settlers brought to previous inhabitants.
- Liberals in Britain have tried to distort the image of Margaret Thatcher by pointing to massive cuts and claiming that she destroyed the British economy calling it a "Trainwreck of a Legacy." This is a clear omission of the fact that there was a British economic boom from 1986–89 and the fact that it was failed socialist economic policy forced massive cuts on the government.
- Although Donald Trump won an unexpected and historic election victory in the 2016 presidential election, liberals and leftists tried to distort this by claiming "Russian involvement" in the election and inventing numerous controversies over Trump and his presidential actions.
- The Left labels "far-right" or "ultra-right" positions that were mainstream only several years prior in an effort to smear conservatives and falsely associate them with fascism.
- Clinton left office with a higher approval rating than Reagan
- For example, the Wikipedia entry on Isaac Newton completely omits how he was a devout Christian who read the Bible daily and derived his inspiration and motivation from it.
- Wikipedia has a comprehensive article detailing Newton's religious views that utilizes similar content and references. 
- Williams, Thomas D. (June 24, 2018). Williams: For the Establishment, Anything Not Them Is ‘Far Right’. Breitbart News. Retrieved June 24, 2018.
- Kassam, Raheem (November 18, 2016). KASSAM: Murdoch’s Reporters Smear me as ‘Ultra Right’ While Happily Working With me in Private. Breitbart News. Retrieved June 24, 2018.