Democrats / Republicans on taxes: capital gains, income, etc.?

How do the candidates running for president in 2008 stand on taxes? (capital gains- long term, short term, income tax, etc.) What do the Democrats and Republicans think about taxes.(lower/ higher better, why?) Thanks

Public Comments

1. Romney wants to make all profit from investment tax free for people earning less than $200,000 a year.( it is unlikely to pass congress) Huckabee want to abolish the income tax, and get all federal revenue from sales tax.( it will never pass congress) Taxes on investments have already been dropped well below taxes on earned income and no one is talking about raising/reducing them further as far as I have heard. Republicans want to make Bushes tax cuts permeate Democrats want to let them expire except for some some on middle income people