The Legislature’s Ugly RatingsHow can you safely distinguish the weirdos from the freaks without contracting whatever is wrong with them? Working across the aisle on issues such as education, energy, crime or affordability is a rarity, a political endangered species. The most conservative Democrat, Rep. Tiffany Roberts of South Berwick, still voted the MPA line nearly 73 percent of the time. An additional 13 Democrats voted the MPA line nine out of every 10 times, while 10 Republicans opposed the alliance on 90 percent or more of all roll-call votes. He also writes a monthly column for The Maine Sportsman and a diatribe each Wednesday for the Bangor Daily News’ e-mail newsletter Maine Politics Insider.