Biden tells crowd to save their energy: 'I may need it in a few weeks'

Biden tells crowd to save their energy: 'I may need it in a few weeks'
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Former Vice President Joe BidenJoe BidenJimmy Carter: 'I hope there's an age limit' on presidency 2020 candidates keep fitness on track while on the trail Mark Mellman: The most important moment in history? MORE hinted at a 2020 presidential bid on Tuesday, telling a crowd in Washington to save their energy because he “may need it in a few weeks.”

Biden’s comments came at a conference of the International Association of Fire Fighters, the union representing firefighters and emergency services workers, where he delivered the keynote address.

"I appreciate the energy you all showed when I got up here,” Biden said. “Save it a little longer, I may need it in a few weeks.”

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The remarks, greeted by cheers from the audience, suggest that Biden may be nearing a presidential announcement after years of speculation about whether he will seek to challenge President TrumpDonald John TrumpJimmy Carter: 'I hope there's an age limit' on presidency White House fires DHS general counsel: report Trump to cap California trip with visit to the border MORE in 2020.

Biden’s looming entrance into the 2020 contest has cast a shadow over other Democratic White House contenders, who see a run by the former vice president as one of the more significant obstacles to securing the party’s nomination.

Biden would enter the race with near-universal name recognition, as well as a vast network of political operatives and donors ready to play a supporting role in a campaign.

Early primary polls show Biden with a consistent lead over other, already-declared Democratic candidates, like Sens. Bernie SandersBernie SandersJimmy Carter: 'I hope there's an age limit' on presidency 2020 candidates keep fitness on track while on the trail Mark Mellman: The most important moment in history? MORE (I-Vt.) and Kamala HarrisKamala Devi HarrisKavanaugh impeachment push hits Capitol buzz saw Mark Mellman: The most important moment in history? Biden leads in new national poll, Warren close behind in second place MORE (D-Calif.).

A recent Des Moines Register–CNN–Mediacom poll released over the weekend showed Biden leading the pack among likely Iowa caucusgoers with 27 percent support. Sanders, who announced his candidacy last month, came in second, at 25 percent, in that survey.