President Obama says he will be closely involved in the decision on whether to approve the controversial Keystone XL oil pipeline that has pitted two of his key constituencies, labor unions and environmental groups, against each other.

In an interview Tuesday with Omaha, Neb., ABC affiliate KETV, the president suggested he will personally weigh the economic and environmental impact of the proposed pipeline before offering his input. The administration had previously said the matter would be a State Department decision.

“The State Department’s in charge of analyzing this, because there’s a pipeline coming in from Canada,” Obama said. “They’ll be giving me a report over the next several months, and, you know, my general attitude is, what is best for the American people? What’s best for our economy both short term and long term? But also, what’s best for the health of the American people?”