(CNN) Washington Gov. Jay Inslee said Sunday that he is moving closer to a decision on a 2020 presidential run.

"We're coming up to another week. Stay tuned," Inslee told CBS's Margaret Brennan on Face the Nation, adding that the decision could come "as soon as" this week.

"I've been pleased by what I've been hearing across the country," the second-term Democratic governor said. "That people do want a president that will act on a real emergency, which is climate change."

The governor was in Washington, DC, this weekend to attend the National Governors Association Conference. The conference came just after 16 states filed a lawsuit challenging Trump's declaration of emergency on the Southern border.

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