Thus ends Newt’s campaign, with an offer to campaign for Mitt:

Former House speaker Newt Gingrich, on the eve of suspending his roller coaster presidential bid, said in an interview with USA TODAY that he will embrace Mitt Romney’s candidacy Wednesday and is ready to campaign for his former rival.

The two candidates are even planning a joint appearance:

The two men will make a joint appearance in a few weeks, when Gingrich will make an official endorsement. The Romney campaign and the Republican National Committee have offered to be helpful as Gingrich works to retire his campaign debt.

Ahh, there’s the explanation for Newt’s embrace of Mitt — retiring the campaign debt. Perhaps after the election Newt can get back to focusing on his own company.