NEW : Political climate screwed up Daschle , says CNN 's Ed Henry . Source says Daschle was worried about what his withdrawal would do to Obama . Senators say they did not see the withdrawal coming . Daschle 's campaign stalled due to tax problems , especially in recent years .
NEW : Political climate tripped up Daschle , says CNN 's Ed Henry . Source says Daschle was worried about what his confirmation would do to Obama . Senators say they did not see the withdrawal coming . Daschle 's nomination questioned due to tax problems , work in recent years .