This is what makes Republicans and Democrats so different - Vox "Their main finding is that Democrats are motivated by specific policy deliverables while Republicans are motivated by broader philosophical principles. But behind this finding is some interesting evidence."
Since 1945, Democratic presidents have put forward 39 percent more policy proposals than Republican presidents, and 62 percent more domestic policy proposals. "There is a good reason for this asymmetry," write Grossmann and Hopkins. "Democrats and liberals are more likely to focus on policymaking because any change that occurs is much more likely to be liberal than conservative. New policies usually expand the scope of government responsibility, funding, or regulation. There are occasional conservative policy successes as well, but they are less frequent and are usually accompanied by expansion of government responsibility in other areas."
Also, the parties are different:
Democrats tend to project their preference for policymaking onto the Republican Party — and then respond with anger and confusion when Republicans don't seem interested in making a deal. Republicans tend to assume the Democratic Party is more ideological than it is, and so see various policy initiatives as part of an ideological effort to remake America along more socialistic lines.