8 million Americans demonstrated against Trump, marking the biggest demonstration in US history.

The claim that "8 million Americans demonstrated against Trump, marking the biggest demonstration in US history" lacks credible verification from reliable sources. All provided sources are marked as non-trusted and offer inconsistent or vague estimates, with some mentioning figures around 6 to 7 million but none confirming 8 million demonstrators. Furthermore, no trusted or authoritative data corroborates that this protest was the largest in U.S. history. Historical large-scale protests, such as the 1963 March on Washington or the 2017 Women’s March, have documented attendance estimates that are often lower or comparable but better substantiated. Given the absence of trusted evidence and the reliance on unverified sources, the claim cannot be confirmed as true.