[joshdata]

That's not really the right picture.

Congress.gov, originally THOMAS.gov, was a product of the Republican Contract with America take-over of Congress in the mid 1990s. Republicans in Congress, including Rep. Issa for example, were helpful in expanding the information that Congress publishes publicly. In the last 15 years, efforts to make Congress publish more and better-structured information have been relatively bipartisan and, mostly, led by nonpolitical staff. I would not describe Democrats as having been the ones to have exclusively created the access to congressional information that we have today, although Democrats in recent years have led on government transparency and accountability issues generally, beyond the Legislative Branch.

Changes that have required legislation have, as far as I'm aware, not really been influenced by the President, other than being signed into law, since they are Legislative Branch concerns and not Executive Branch concerns.