Kamala Harris's nomination as the Democratic presidential candidate has invigorated the party, narrowing the race between Donald Trump and Republicans. Harris holds a slight national lead even with Trump in battleground states. The campaign now focuses on defining Harris and key issues like the economy, abortion, and democracy. A significant gender gap persists, with women more likely to support Harris, particularly on economic issues. The upcoming Democratic convention will be crucial for maintaining voter enthusiasm and defining Harris's platform before the Trump campaign does.