The Trump administration is postponing controversial plans to greatly expand oil and gas drilling off of the nation's coasts, following a recent setback in court and months of pushback from coastal communities. Last month, a federal judge in Alaska ruled that President Trump exceeded his authority when he signed an executive order to lift an Obama-era ban on oil and gas drilling in parts of the Arctic and Atlantic oceans.The decision immediately reinstated those protections, and was a major blow to the administration's efforts to boost oil and gas development across the country.While the Trump administration is expected to appeal the decision, a resolution could be a long ways off. That makes it uncertain where new oil leases may eventually be allowed.