The final Iowa poll released this weekend showed Kamala Harris slightly ahead of former President Donald Trump — in a state he had previously carried — partly thanks to support among women for the vice president, CNN reports.

This gender gap has been seen in other states too, CNN quoted Sara Sadhwani, an assistant professor of politics at Pomona College, as saying.

And these women could have a strong influence on the election as they tend to be a more reliable voting bloc, she added.

While Trump enjoys the support of many young men, that demographic isn’t always reliable — meaning they may not actually turn out to vote, perhaps because “they don’t always see the outcome of an election as being something that’s actually going to benefit them in the future”, Sadwhani told CNN’s Rosemary Church on Monday.