As the Republican presidential primary shifts its focus to Wisconsin, Gov. Scott Walker is poised to re-enter the national spotlight, having suggested this week that he will soon offer his endorsement. Walker said he would weigh in "after Easter, when it would have the maximum impact," and hinted strongly that he favors Sen. Ted Cruz, who "is the only one who's got a chance other than Donald Trump to win the nomination." "Probably in the next week or so we'll, one, make a decision whether we're going to endorse or not; then, secondly, specifically who we’re going to get behind,"...