Since his emergence as a top-tier contender in January, Scott Walker has moved closer and closer to Ted Cruz’s end of the GOP-spectrum, and as he tries to gain traction in Iowa, to throw off the holding pattern created by Trump’s rise, and to break through the scrum, there may be fewer and fewer issues that differentiate the two. T Take, for example, how the two are approaching the candidacy of Donald Trump. Cruz has lavished praise on The Donald; this morning, Walker told Fox News that his position on immigration is similar to that of Trump’s (the most notable...