A Hezbollah victory would strain ties with the US and with pro-Western nations like Egypt, Jordan, and Saudi Arabia.
Tuesday's switch by the independent-minded Pennsylvanian also helps Democrats to solidify power in the Senate.
The president's decision not to prosecute CIA agents for torture is being criticized by right advocates.
Protests against Washington spending took place in more than 700 US cities Wednesday.
In the past, major media outlets have given antigovernment 'tea party' protests – like the ones held today – short shrift. Critics say it is because they are out of touch with America.
Tax protesters gather around the country. Is it a GOP put-up job?