By EMILY SCHULTHEIS | 4/5/12 11:17 AM EDT The Center for Health Transformation, Newt Gingrich's health care think tank, has filed for bankruptcy, via the Huffington Post:

The Center for Health Transformation, which Gingrich launched in 2003, plans to liquidate its assets. According to the Washington Post, the group collected at least $37 million from health care insurers, pharmaceutical companies and other industry groups over the last eight years, reportedly offering access to Gingrich among other incentives.

In its bankruptcy filing, the think tank listed estimated liabilities of $1 million to $10 million.

The signs that Newt Inc. was struggling have been there for a while now -- the Newt non-profit American Solutions for Winning the Future folded last June.