Karl Rove, the president's chief political adviser, gave nervous Republicans here a preview of the party's strategy to maintain its dominance in the fall elections today, assailing Democrats for their positions on terrorism, the White House eavesdropping program and Mr. Bush's attempt to shape the federal judiciary. For 26 minutes, after calling for civility in politics in a packed speech before the Republican National Committee, Mr. Rove offered a lacerating attack on Democrats that other Republicans said was a road map for how the party would deal with a tough electoral environment. Mr. Rove sharply criticized Democrats for their opposition...