The issue is predominantly about resources. Clinton and the Democratic party entered October with twice as much money in the bank as Trump and the Republicans, but some in Clinton’s camp have cautioned against any late moves that could jeopardize a victory in states she appears to have nailed down.

“We’ve got to get our wind,” said a senior Clinton aide, who spoke on the condition of anonymity to discus the campaign’s strategy. “We have to make sure we focus on keeping the pressure on and doing the things we need to build up as many electoral votes as we can.”

The campaign is expected to decide in coming days whether to make a more aggressive play for states such as Georgia, which is being eyed as one of the more promising opportunities for Clinton, and Arizona, where a couple of high-profile surrogates are being deployed this week: Sen. Bernie Sanders of Vermont on Tuesday and Chelsea Clinton on Wednesday.

Meanwhile, the Trump campaign is not willing to concede publicly that any states on the map are lost, holding that Clinton’s low favorability ratings, and Trump’s anti-establishment message, will push undecided voters and independents to break for Trump in the final leg of the campaign.