Hillary Clinton's campaign used a "pied piper" strategy to elevate Donald Trump into US politics.

Hillary Clinton launched Donald Trump into relevancy thinking that Donald Trump would get annihilated in the general. The campaign also decided to use all their campaign cash to do nothing but promote Donald Trump's name in the news when Trump's campaign was broke.

https://www.politico.com/magazine/story/2016/11/hillary-clinton-2016-donald-trump-214428

https://www.salon.com/2016/11/09/the-hillary-clinton-campaign-intentionally-created-donald-trump-with-its-pied-piper-strategy/