Democrats should not cooperate with Donald Trump’s presidency.
Allowing Trump to claim to be a bipartisan President strengthens his political stature.
Cooperation with Trump is bound to fail; Democrats should focus on forming a policy platform which they can run on in 2018 and 2020.
Cooperation with Trump will require trading away key Democratic priorities; this should be avoided at all costs.
Cooperating with Trump normalises his Presidency and everything he stands for, something which Democrats should be opposed to.
Trump is not a Democrat vs Republican problem. Framing as such makes it harder for Republicans to voice their own disgust with POTUS.
Democrats can weigh the costs and benefits of cooperation on a case-by-case basis. It is highly unlikely that cooperation will always turn out to be a bad idea, so rather than adopting a blanket policy, Democrats should reserve cooperation for the few cases where it is rational.
Refusing to cooperate with or obstructing the other party when they are in government violates democratic norms and principles.
Democrats must cooperate with Trump in order to forward their legislative agenda, an agenda that stands in opposition to the ideals Trump espouses.
Refusal to cooperate with Trump will polarise the American public even more.