Has Kamala Harris reached the ceiling of her ability to make gains against Trump?

The article discusses Kamala Harris' performance in the 2024 presidential election against Donald Trump, highlighting her ability to energize Democratic voters and close the gap in key swing states. Despite initial momentum, Harris' support has plateaued, with polling showing her and Trump effectively tied. The article suggests that Harris may have reached the peak of her ability to gain more support, and her focus should now be on mobilizing her existing supporters for Election Day. [Extracted from the article]