Allegations of Barack Obama spying on Donald Trump

As part of a larger conspiracy theory, Donald Trump posited that Barack Obama had spied on him, which Trump described as "the biggest political crime in American history, by far." The series of accusations have been nicknamed Obamagate. Obama had served as the 44th President of the United States from 2009 until 2017, when Trump succeeded him; Trump served as the 45th president until 2021 (first presidency) and later he was re-elected in 2024 as the 47th president (second presidency).

Source: Wikipedia — Allegations of Barack Obama spying on Donald Trump (CC BY-SA 4.0)