Original sentence: The success of these candidates can be simultaneously considered a cause and effect of the Democratic wave in the 2006 election: fundraising on Daily Kos and other progressive blogs/websites contributed heavily to this and other races, boosting recognition of Democratic candidates across the board; on the other hand, the general anti-Bush, anti-incumbency sentiment across the country helped boost these candidates and others on the Democratic side
Edited sentence: The success of these candidates can be simultaneously considered a cause and effect of the Democratic wave in the 2006 election: fundraising on Daily Kos and other left wing blogs/websites contributed heavily to this and other races, boosting recognition of Democratic candidates across the board; on the other hand, the general anti-Bush, anti-incumbency sentiment across the country helped boost these candidates and others on the Democratic side