Remember when he signed the omnibus bill about a year ago? He claimed he'd never sign one again that didn't have wall funding. He was convinced by Ryan & McConnell to sign it because he got the military spending he wanted, and that they could push through the border wall funding in 2018. When the dems won the House they put Pelosi in an awkward position. Many of the new reps pledged in their campaigns to not vote for her for Speaker and many of them were on the far left. She had to straddle the fence and make some deals to get the Speakership. When the R House voted for 5 billion for the wall in late December (by an impressive margin) Schumer had to kill it in the Senate to keep Pelosi's hopes alive for getting the post. So, all of this crap has had nothing to do with border security or the wall but everything to do with politics.