527 group folded after former house speaker's campaign faltered

In Bush’s first year in office, the deficit grew by nearly 1,000 percent

Proceeds from various ventures added up to more than $105 million

FACT CHECK: Facts large and small trip up Republican presidential candidates

FACT CHECK: Holding Gingrich to his own statements on climate change

Gingrich courts evangelicals, Tea Party, and K Street lobbyists

Current Republican favorite for the presidential nomination holding a grudge against '97 ethics panel, Pelosi

In case you missed them, catch up on this week's top investigations from iWatch News

Gingrich brings in double the cash from what was disclosed from ethanol lobbying group

Casino owner, Gingrich bond over Israel security issues