From the perspective of actually getting anything done in the next two years, there was perhaps no worse outcome. Republicans don't fully control Congress, so they don't have enough power to be blamed for legislative outcomes. But Democrats don't control the House and they don't have a near-filibuster proof majority in the Senate, so they can't pass legislation. Republicans, in other words, are not left with the burden of governance, and Democrats are not left with the power to govern. Republicans don't have to be responsible, and Democrats can't do it for them.
Ezra Klein a une vision de l'avenir du nouveau Congrès qui me semble pertinente :