To keep the US housing market and economy growing, Congress needs to take action on several fronts, President Barack Obama said on Saturday in his weekly address. \"Congress should pass a law giving every responsible homeowner the chance to save about 3,000 dollars a year on their mortgage by refinancing at historically low interest rates,\" Obama said. Congress also should put more Americans to work rebuilding crumbling roads and bridges \"like the one that collapsed last week in Washington state,\" he said, adding \"We would all be safer, and the unemployment rate would fall faster\". \"And Congress should fix our broken immigration system by passing common-sense reform that continues to strengthen our borders; holds employers accountable; provides a pathway to earned citizenship; and also modernizes our legal immigration system so that we are reuniting families and attracting the highly skilled entrepreneurs and engineers who will help our economy grow,\" the President said.