RNC chair warns, if GOP doesn't give its nativist voters the wall, they'll 'walk away' in 2018

We've heard a lot of red-alert warnings from Republicans fretting that failing to make good on GOP promises will cost them votes in the midterms. Normally, political observers reference the failure to repeal health care or faltering on tax reform, but RNC chair Ronna Romney McDaniel is keeping it real: they could lose all those anti-immigrant nativists who voted for Trump too unless they deliver on his useless $40- to $50-billion border wall. ...
http://www.dailykos.com/stories/1656525