AUSTIN — Tom Craddick's bid to remain House speaker appeared increasingly uncertain Thursday with the announcement by a once-trusted member of his leadership team that he would oppose Craddick in what suddenly has become a three-way race among Republicans. Jim Pitts, 59, the affable Republican from Waxahachie whom Craddick appointed to chair the influential Appropriations Committee in 2004, said he decided to challenge the 63-year-old speaker from Midland because he is convinced he can win. While refusing to name names or discuss precise numbers, Pitts said at an afternoon news conference that he'd done the math and, unlike either of...