After a rocky start, President Bush is scoring legislative wins that could be important tests of his ability to push laws through Congress in his second term. While his centerpiece proposal to restructure Social Security continues to languish, Bush's close victory on a trade bill and his progress on energy and highway legislation are quieting talk that he is a lame duck already. His nomination of conservative federal appeals court Judge John Roberts to the Supreme Court also seems to be on track, despite skirmishing with Democrats over access to papers from Roberts' work as deputy solicitor general in the...