"When I begrudgingly signed the Omnibus Bill, I was promised the Wall and Border Security by leadership," Trump tweeted on Thursday morning . We foolishly fight for Border Security for other countries - but not for our beloved U.S.A. Not good!" But the finality of the announcement -- delivered by Ryan, not Trump -- throws Washington into total chaos. What led Trump to change his mind? To go from an annoyed willingness to keep the government open (and avoid being blamed for the shutdown) to a refusal to do so unless more money for his border wall made it into the legislation?

Source: CNN December 20, 2018 19:51 UTC