Sen. Dianne Feinstein, says more troops are needed to turn the tide against an increasingly potent Taliban insurgency.
Feinstein's position puts her at odds with fellow democrats, including an influential colleague on military matters.
Senate armed services chairman Carl Levin is urging a more methodical approach that begins with crafting a new, comprehensive strategy for Afghanistan.
Levin said on NBC's "Meet the Press" that now is not the time to send more combat troops.
The diverging opinions come as President Barack Obama and his war council wrestle with how many more troops might be needed in the 8-year-old Afghanistan conflict.
Key to the deliberations is whether to focus the fighting more narrowly on Al-Qaida or more broadly on Taliban insurgents.