Newt is very sorry he blew himself up. “Newt Gingrich signaled Wednesday that he believes his criticism of Mitt Romney’s record at Bain Capital is a mistake — and that he’s created an impression that he was echoing Democratic rhetoric.Gingrich conceded the problem when pressed by a Rick Santorum supporter at a book signing here Wednesday.” Really, who would trust him with any office at this point?

But Gingrich may not be sorry enough to stop the anti-capitalism attacks. “Newt camp denies backing off Bain attack.” I wonder how badly Newt will be booed when he tries his anti-venture-capital routine in a South Carolina debate.

Mitt Romney might not be sorry at all. “A triumphant Mitt Romney prepared to enter the crucible of South Carolina politics on Wednesday with a warning to his Republican rivals already waiting for him there: your attacks on me have failed.”

Sorry, but when did they realize this? “Friends and allies of Newt Gingrich, alarmed at his recent attacks that seem straight out of the Democratic playbook, worry that the former House speaker may be doing his party’s eventual presidential nominee serious damage — and that he won’t listen to veteran Republican strategists urging he back off.” If they are that concerned, they could go on the record.

I bet the Texas governor is sorry he ever got into the race. “Rush Limbaugh lashed out at Rick Perry on Wednesday, comparing the Republican presidential candidate to Fidel Castro for his attacks on Mitt Romney. Limbaugh has been aghast at the attempts by many GOP hopefuls to tarnish Romney’s tenure at Bain Capital, the company Romney helped found. On Wednesday, he played a clip of Perry strongly criticizing Romney.”

And very sorry he started bashing his donors’ businesses. “Rick Perry has spent the past few days fiercely attacking Mitt Romney for his tenure at Bain Capital, even calling companies like Bain ‘vultures’ who ‘eat the carcass’ of companies. But the Texas Tribune looks through Perry’s past donors and finds that employees of private equity firms, investment firms and hedge funds have donated heavily to his gubernatorial campaigns.” Ouch.

I’m certain that the left is sorry it championed the case. A huge win for conservative defenders of religious freedom: “In what may be its most significant religious liberty decision in two decades, the Supreme Court on Wednesday for the first time recognized a “ministerial exception” to employment discrimination laws, saying that churches and other religious groups must be free to choose and dismiss their leaders without government interference.” When the Rev. Barry W. Lynn, executive director of Americans United for Separation of Church and State, is grumpy, you know the result is a positive one.

Romney may be sorry he didn’t get an official endorsement, but this is the next best thing. “DeMint: Romney Will Win S.C. Primary.”