As of April 1, 2017, 13 Joint Resolutions of Disapproval (JRDs) have been approved by both houses of Congress, and President Trump has signed eight of them into law. This is too few data to conduct any serious statistical analysis. Nonetheless, it is interesting the notice possible trends in congressional action.
Three hypotheses immediately come to mind:
- Early JRDs concern regulations that aroused the greatest congressional opposition.
- The longer it takes for the second house to vote to disapprove, the lower is the support for disapproval in the second house to vote.
- Congressional support for or opposition to a JRD is almost exclusively partisan.
Here is some early, and highly preliminary, analysis.