Of course he does, and has to, because he can't pass legislation without the R's in control in the House and Senate at this point in time so in essence he is also controlling the R's and they have to support him or they lose credibility. In the final analysis though, long term the R vs D government does not work. That is a project for the future to work on. Right at this moment he is in power as an R, thus he must invoke R vs D to accomplish his short term goals. Long term many of the R's will go down too. Some already are, e.g. Paul Ryan, Flake, etc.