Vice President Kamala Harris has maintained a narrow lead against former President Donald Trump in Pennsylvania, a state whose importance continues to loom large and where the margin of victory looks like it will be razor thin.

While Harris has a slight lead nationally, there's no clear leader in the seven swing states likely to decide the election.

Trump has 51 percent of support among likely voters in Arizona to Harris’s 46 percent, while 2,000 miles away in Pennsylvania, the vice president appears to be consolidating a lead of 50 percent to Trump’s 47 percent, having led in that state for the third consecutive poll.