Birtherism, also called the Birther Movement, is a conspiracy theory that arose during Barack Obama’s presidency. The hypothesis alleged that Obama was not actually born in the U.S. and was therefore not eligible to become president.
However, people have continued questioning President Obama’s birthplace long after his presidency has ended, even though there was never any credible evidence to support the theory.
Obama publicly released his Hawaiian birth certificate, both the long-form and short-form copies. However, despite this clear evidence to the contrary, many supporters of the theory (known as “birthers”), including prominent politicians and even President Donald Trump himself, continue to question Obama’s birthplace.