Craig Robinson, editor of TheIowaRepublican.com, said caucus goers in his state have been told Walker is a reform-minded governor, but of late “they’re seeing someone who is acting more like a politician, making calculated moves.”

“It takes discipline” to run for president, Robinson said. “When you say you’re going to build a 5,000-mile wall with Canada, that’s not disciplined. That’s crazy talk.”

Walker is contending he never said he supported building a wall along the Canadian border, but Robinson said Walker should have known how his comments would have been perceived and should not have made them.

Via Scott Walker’s once high-flying campaign hits turbulence @ JSOnline.