Add Scott Walker to the list...

...of "moderate" Republicans, including Chris Christie and Jeb Bush, who will probably not be the party's nominee in 2016. From an article in the Milwaukee Journal Sentinel, "John Doe prosecutors allege Scott Walker at center of 'criminal scheme' ":

Prosecutors allege that Gov. Scott Walker was at the center of an effort to illegally coordinate fundraising among conservative groups to help his campaign and those of Republican senators fend off recall elections during 2011 and '12, according to documents unsealed Thursday.

Meanwhile, Gail Collins asks:

Could powerful moderates in the Republican Party be desperate enough to want to bring back Mitt?