ABC News' Bob Woodruff Reports: Senator Tim Johnson, the South Dakota Democrat who suffered a near fatal brain hemorrhage last December, will seek reelection in 2008. Johnson greeted South Dakota voters Tuesday, in his first public appearance since falling ill. We continue to wish Johnson well, but now that Johnson decided to seek reelection it's time for the gloves to come off. Johnson won reelection in 2002 by just 524 votes and was a tempting target even before he became ill. Two Republicans, State Representative Joel Dykstra and business man Sam Kephart, are running for Johnson's seat.