A slim majority expect Republicans to take over the Senate in the midterm elections.
Thirty-seven percent said that their trust has decreased over the past year.
Young adults and Democrats are the most likely to support gay marriage.
The polling firm found more people are insured in states that embraced ObamaCare.
The low level of satisfaction is a marked improvement from the October low of 16 percent.
Gallup found a 7-point gap on approval of the healthcare law depending on what it is called.
Gallup conducted the survey after recent controversies over the VA, Bowe Bergdahl.
On social issues, 34 percent of people identify as conservative and 30 percent as liberal.
Nancy Pelosi trails shortly behind, with a negative 16 percent net rating.
Since December, the approval rating has hovered between 12 and 15 percent.
Seventy-two percent of people say “big government” is the biggest threat to the country.