Vice President Kamala Harris leads or is tied with Trump in all but one of the six states likely to decide the election, according to a new CNN/SSRS poll, though significant shares of likely voters in each state are undecided, indicating the race could shift by election day.

Wisconsin: Harris has her most sizable lead here, 50% to 44% (though 14% of voters say they could change their minds), expanding the two-point advantage she held here in July’s Bloomberg poll.

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Pennsylvania: Harris and Trump are tied here, each with 47%, with 15% of voters open to changing their minds—a swing in Harris’ favor from July, when Trump was leading by four points in the Bloomberg News/Morning Consult survey.

Georgia: Harris is up by one point here, 48% to 47%, well within the 4.7-point margin of error, while 11% of likely voters surveyed suggested they could change their minds (she and Trump were tied here in July with 47% support each in the Bloomberg/Morning Consult poll).

Nevada: Another state with no clear leader, Harris leads by one point, 48% to 47%, and 13% of respondents told CNN/SSRS they’re not firmly committed to the candidates they prefer now, a slight decline from Harris’ two-point lead here in the July survey.

Michigan: Harris is up five points here, 48% to 43%, with 15% of respondents saying they might change their minds, a narrower lead than the 11-point advantage she held here in the July Bloomberg News/Morning Consult survey.

Wisconsin: Harris has her most sizable lead here, 50% to 44% (though 14% of voters say they could change their minds), expanding the two-point advantage she held here in July’s Bloomberg poll.