A few things are missing from your list.
The Record of Newt Gingrich
1979 Elected to Congress from Georgia's 6th District
1979 Voted to create the Department of Education, under President Jimmy Carter
1989 Becomes House Minority Whip
1990 Becomes member of Council on Foreign Relations (CFR)
1993 Voted for NAFTA, the North American Free Trade Agreement
1994 Supported the WTO, the World Trade Organization. Voted for GATT, the General Agreement on Tariffs and Trade that subjected Americans to the international authority of the WTO (See his exact quote in accompanying article.) See additional link.
1995 Becomes Speaker of the House of Representatives and recommends reading The Third Wave by Alvin Toffler as required reading for all of his Congressional colleagues.
1995 Delivers speech to the Center for Strategic and International Affairs in which he blames the US Constitution for making America's role in leading the world more difficult! Read his full quote in accompanying article, "The American challenge in leading the world is compounded by our Constitution...".
1995 Wrote the foreword to another one of Toffler's books, The Politics of the Third Wave, Creating a New Civilization
1995 The liberal establishment Time Magazine names Newt Gingrich their “Man of the Year”
1995 Appeals to the US House of Representatives to increase the power of the Presidency by repealing the War Powers Act of 1972, and urged President Clinton to expand the US military presence in Bosnia.
1996 Under his leadership, Congress passed the largest single spending increase on education in US history, a whopping $3.5 billion dollars!
1999 Newt resigns over failed midterm elections in which Republicans lost 5 seats, the worst loss in history for a Party who did not control the White House! At the same time, he was also involved in a flap over an extra marital affair and a controversial book deal!
“The Reincarnation of Newt”
2008 Records the 'We Can Solve It' global warming TV commercial for Al Gore along with Nancy Pelosi
2009-2010 Travels around the country with Al Sharpton and Arne Duncan to promote President Obama's new educational policies: i.e. increased local control of schools with increased Federal subsidies and regulations from Washington. (Sounds like quite a contradiction to me.)
2010 Supported ultra-liberal, pro-abortion, pro-union, establishment candidate Dede Scozzafava in New York's 23rd Congressional District in a special election, over conservative candidate Doug Hoffman.
Source:
Is Newt Gingrich the Best Candidate for President in the Republican Primary?
A lot of people turned on Cain because of some allegations from years ago but nobody seems to care that Newt has had two marriages end because he engaged in extramarital affairs.