The Democrats may be victorious in the US, but according to spiked-online they are lame ducks like the President. The party has expressed few principles during the campaign, and the mid-terms in general have 'confirmed the peculiar situation in which American society appears deeply polarized yet without experiencing any discernable political divide'. Meanwhile the Guardian points out that the new intake of Democrats include a large proportion of 'neo-Dems' who are pro-gun, anti-abortion and fiscally conservative.
UPDATE: See also, the NY Times article Incoming Democrats put Populism before Ideology.