The partial government shutdown will end when both sides think they are losing the political war that started it — and not before then. Yes it can end if one side caves, or if President Donald Trump declares a national emergency to fund a border wall, but that is not likely to happen within the next pay period or two, if at all. Partisan rancor has herded voters into two corners so that both the Republican and Democratic bases don’t want their leaders to cut a deal. Republicans support a shutdown that JP Morgan CEO Jamie Dimon warned could drive economic growth to zero if it continues.