A Response for Those Who Think Republicans Prevented Unity

In response to a facebook commenter who hadn't yet made up their mind whether or not they would be voting for Obama again, I made the following arguments. I felt they were good enough to post here. I am also willing to take some criticism on the argument. I would like for this argument to be a rock solid response for anyone who claims that the President hasn't gotten any support from the Republicans. Many times, Republicans have come to the table to hash out disagreements. What were the results?