The number of political luminaries already flying into Iowa these days not only signifies an early start in the White House 2008 campaign, but also offers a clue into the sizzling race in Iowa's 1st Congressional District. In the last month, following the contentious Iowa Democratic and Republican primaries, big shots like Vice President Dick Cheney, White House political adviser Karl Rove and prospective 2008 Democratic presidential contenders John Edwards and Sen. Evan Bayh of Indiana have come in to stump for the candidates in this northeastern Iowa district. According to analysts, the flow may not let up until November...