US Vice President Joe Biden and former secretary of state Hillary Clinton, both possible 2016 presidential candidates, had breakfast together on Tuesday, Biden's office said.
The meeting in Washington came a day after Clinton shared a closed-door lunch with President Barack Obama, who defeated her in a hard-fought 2008 primary before recruiting her to be the top US diplomat.
Clinton, who has yet to say whether she will seek the presidency again, is already widely viewed as a frontrunner for the Democratic nomination.
Biden, who ran unsuccessfully for the Democratic nomination in 1988 and 2008, has hinted at a possible 2016 run.
The two had breakfast at the Naval Observatory, the vice president's residence in Washington.
The menu included scrambled eggs with roasted tomatoes and avocado, turkey bacon, fresh fruit and multi-grain toast, the vice president's office said in a statement.
The office did not say what they discussed.
The US president is limited to two four-year terms, meaning Obama will leave office in January 2017.
Earlier this year Clinton fielded a flurry of media questions about her intentions by saying only that she wanted rest and relaxation after a grueling run as secretary of state.
The jet-setting diplomat visited some 112 countries and traveled over 950,000 miles in four years.
But since stepping down she has given a series of public addresses and groups of supporters have already organized themselves behind a 2016 run, stoking speculation.
Age could emerge as a factor in the next presidential election. Biden will be 73 when the vote is held and Clinton will be 69. Obama was just 47 when he was elected in 2008.