'They spied on my campaign': How Trump transformed a conspiracy theory into a political rallying cry

President Donald Trump says all the time, "they spied on my campaign." He ad-libbed during his Thursday night convention speech to add the phrase into his prepared remarks. And he tweeted it last week as a rebuttal to former President Barack Obama's convention address.

source https://www.cnn.com/2020/08/29/politics/trump-spying-campaign-obama-fact-check/index.html