June 9 (Bloomberg) — Douglas Holtz-Eakin, president of the American Action Forum, and Joseph Minarik, senior vice president and director of research at the Committee for Economic Development, talk about the U.S. debt ceiling and the need for bipartisan cooperation on fiscal policy.   Any U.S. debt default would be very serious and the government should stop playing with fire, said Li Daokui, an adviser to the People\u2019s Bank of China, according to a Reuters report. Holtz-Eakin and Minarik speak with…