The Maine Republican senator says most Mainers and most Americans want policies that come from the center, not from the far right or far left. Polls show Republicans, energized by the tea party movement, could sweep Democrats out of power in the U.S. House and gain on them in the Senate. In Maine, a new poll out today, shows GOP candidate Dean Scontras gaining on Democratic incumbent Congresswoman Chellie Pingree. But Maine Republican Sen. Olympia Snowe says most Mainers, and most Americans, want policies that come from the center, not from the far right, or the far left: "I understand...