Pennsylvania Sen. Arlen Specter says he opposes President Barack Obama's plan to send 30,000 more troops into Afghanistan.

Specter, a Democrat, says al-Qaeda can operate out of other countries, such as Yemen and Somalia. So he says it doesn't make sense to fight in Afghanistan, where he says no one has succeeded in the past.

Specter's rival in the 2010 Democratic primary, Rep. Joe Sestak, says he supports the troop increase. He says he supports the president's overall goals but is looking for more details. Sestak says security benchmarks should be used to measure progress and there shouldn't be a fixed timetable to leave. Sestak commanded an aircraft carrier battle group in Afghanistan before being elected to Congress.