Last year, the House Energy & Commerce Committee began investigating how the president’s health care law was developed, examining the backroom deals and secret negotiations between the Obama administration and the health care industry.

The goal is to shine a light on the behind-closed-doors process used to craft this expansive law, which today is raising costs and making it harder for small businesses to hire new workers – and is being reviewed by the Supreme Court for its Constitutionality.

According to the committee, the investigation so far has found “the White House engaged in extensive negotiations” with outside interests, “trading policies for public support and treating pieces of our health care system like a series of bargaining chips to be doled out in an effort to deliver a political victory.” But with the White House stonewalling requests for information, there remain a lot of unanswered questions.

Below is a memo from the committee updating lawmakers and outlining the next steps in the investigation: