Rep. Jim Jordan (R-OH) admitted on publicly that Trump declared a national emergency in order to fulfill a campaign promise that he couldn't enact through the normal legislative process.
ABC News: Can you cite an example of POTUS asking Congress for something, getting rejected, but doing it anyway?
Jim Jordan: I dunno. Trump is trying to fulfill a campaign promise
ABC News: Right, which is what Congress rejected
Jordan: Look, it'll go to court