This weekend marks the unofficial end of summer, prompting Politico to ask its panel of Iowa and New Hampshire political insiders which candidate had the worst summer. The answer, according to the insiders, was Wisconsin Gov. Scott Walker:

Insiders: Scott Walker the biggest loser of the summer

It’s been a cruel summer for Scott Walker … nearly half of GOP insiders said Walker, the Wisconsin governor, had the worst summer on their side of the aisle. In Iowa, where he was until …