Outgoing Senate Minority Leader Harry Reid, an elderly Nevadan who will retire in January, sees his Democratic Party's best presidential hopes for 2020 a group whose old age could doom them in an election against an incumbent Republican Donald Trump.

Asked by his congressional aides in early December whether he would support current Vice President Joe Biden if he were to run for the White House in four years, Reid said that question 'depends on who's running' against him in a primary.

'It appears we're going to have an old-folks' home,' Reid reflected.

'We've got [Elizabeth] Warren; she'll be 71. Biden will be 78. Bernie [Sanders] will be 79.'

Senate Minority Leader Harry Reid, who will retire next month, told aides that his party's potential 2020 field of aging presidential maybes look like an 'old folks home'

Sen. Bernie Sanders (left), who ran an unsuccessful primary campaign this year, will be 79 years old in four years, and liberal firebrand Sen. Elizabeth Warren (right) will be 71

Vice President Joe Biden, who has danced around the subject of a 2020 White House campaign, would be 78 years old if he were to run and win

Hillary Clinton, too, would be 73 if she were to mount a third bid for the presidency and finally notch a victory in a Trump rematch.

New York magazine reported on Reid's comments, not saying how it obtained exact quotes of what Reid told his staff.

The potential 2020 Democratic primary contenders aren't all in their declining years.

Younger potential runners include New Jersey Sen. Cory Booker, who is only 47. Minnesota Sen. Amy Klobuchar is 56, and (D-MN) and Sen. Kirsten Gillibrand of New York is 50.

But the Democrats in positions of congressional leadership have a full generation or more on some of their GOP counterparts. House Minority Leader Nancy Pelosi is 76 years old, compared with House Speaker Paul Ryan's age of 46.

The cantankerous Reid's successor in the Senate, Chuck Schumer, is 66. But he's not likely to seek the presidency even though his tenure isn't expected to run along Reid's lines.

If Hillary Clinton should decide to run for president a third time, success would come shortly after her 73rd birthday

Chuck Schumer, Reid's replacement as the Senate's Democratic leader, would be 70 if he were to ru nagainst Donald Trump and win the next time around

The affable New Yorker, it turns out, thought he was signing up to work alongside a second Clinton presidency, not the attack dog role Reid has relished in the past.

'Schumer would be a very good majority leader under President Hillary Clinton, and that’s what he thought he was signing up for,' a Democratic strategist told New York magazine.

'Chuck will go to the ramparts on an issue when it's polling at 60 percent, but as soon as it gets hairy, he's gone,' a senior Democratic Senate aide added.