The first important election of the 2006 Senate races comes today, as Republican senators and senators-elect meet to choose between Norm Coleman of Minnesota and Elizabeth Dole of North Carolina to head their campaign committee. Both sides say they have enough votes to win, so the final tally probably will be close. The victor will need at least 28 votes from the 55 members of the next GOP caucus. Although the president's party often suffers during the off-year elections of his second term, a look at the map for 2006 suggests that the GOP's majority in the next Senate is...