CHICAGO Well, the partys over.

The Democratic National Convention a four-day whirlwind of electric speeches, late-night bashes, policy panels and tens of thousands of attendees from all over the country feeling absolutely rejuvenated about the prospects of victory in November has come to an end.

Now comes the hard part as the hangover sets in: Democrats have to keep this off-the-charts momentum going for 72 more days and mobilize swarms of voters to turn out for Kamala Harris presidential campaign. If they cant, given that this race is currently so tight that it could ultimately be decided by a handful of votes in certain precincts in swing states, there is a very real possibility that she will lose to former President Donald Trump .

Former first lady Michelle Obama got at this stark reality on Tuesday night, in what was easily the most effective speech of the convention: Michelle Obama is asking you no, Im telling yall to do something.

HuffPost was certainly a buzzkill at the convention, walking around asking elated delegates and attendees if they recognized, given current polling, that Harris could lose.

Rep. Melanie Stansbury (D-N.M.) acknowledged that the ongoing celebrations at the convention could be papering over the reality for people that the race remains extremely tight.

I am very worried about that, Stansbury said.

She drew some parallels to Hillary Clintons run for president in 2016, when Democrats headed to polls overly confident about victory only to see her lose to Trump. Buoyed by mistakenly rosy polling in key states and an over-reliance on data analytics , the Clinton campaign famously began advertising on TV in Texas , which was never really in contention. By contrast, during the general election, Clinton never campaigned in person in Wisconsin, a state where Trump bested her by a razor-thin margin.

Though the political landscape has changed dramatically since then millions of women marched in protest of Trump, thousands of women ran for office in 2018, social media has become more democratized and pollsters have updated their methods to account for changing voter habits Stansbury said there is still anxiety over a repeat because the stakes are so high and Democrats have only a couple of months to boost voter education and turnout.