Democratic front-runners defend their age during debate

Democratic front-runners defend their age during debate
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The three front-runners in the Democratic race for the White House defended their ages during Tuesday night's debate, with each one saying they would be able to take on the duties of the presidency.

Former Vice President Joe BidenJoe BidenWarren: Dershowitz presentation 'nonsensical,' 'could not follow it' Bolton told Barr he was concerned Trump did favors for autocrats: report Dershowitz: Bolton allegations would not constitute impeachable offense MORE, who turns 77 next month, said his age is one of the reasons he decided to jump into the race because the country needs his wisdom and experience.

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He then announced he would release his medical records before the first primary in Iowa. 

"We need someone to take office this time around who on day one can stand on the world stage, command the respect of world leaders from Putin to our allies and know exactly what needs to be done to get our country back on track," he said, referring to Russian President Vladimir PutinVladimir Vladimirovich PutinSchiff shows clip of McCain in Trump impeachment trial The need for clear thinking about Russia German president expresses 'sorrow' for Holocaust, warns 'spirits of evil' are rising MORE.

Sen. Bernie SandersBernie SandersGOP Iowa senator suggests Trump impeachment defense could hurt Biden at caucuses On The Money: Stocks close with steep losses driven by coronavirus fears | Tax season could bring more refund confusion | Trump's new wins for farmers may not undo trade damage Sanders launches first TV ads in Nevada MORE (I-Vt.), who is 78 and suffered a heart attack weeks ago, vowed to mount an aggressive campaign and invited those watching the debate to attend an upcoming rally in Queens, N.Y.

"We are going to be mounting a vigorous campaign all over this country," he said. "That is how I think I can reassure the American people."

Sen. Elizabeth WarrenElizabeth Ann WarrenWarren: Dershowitz presentation 'nonsensical,' 'could not follow it' On The Money: Stocks close with steep losses driven by coronavirus fears | Tax season could bring more refund confusion | Trump's new wins for farmers may not undo trade damage Overnight Energy: Sanders scores highest on green group's voter guide | Trump's latest wins for farmers may not undo trade damage | Amazon employees defy company to speak on climate change MORE (D-Mass.), 70, was asked what she'd say to primary voters who think a candidate under 70 years old would have a greater chance of beating Trump — who is 73.

"I will outwork, outorganize and outlast anyone, and that includes Donald TrumpDonald John TrumpWarren: Dershowitz presentation 'nonsensical,' 'could not follow it' Bolton told Barr he was concerned Trump did favors for autocrats: report Dershowitz: Bolton allegations would not constitute impeachable offense MORE, Mike PenceMichael (Mike) Richard PenceSioux City newspaper endorses Biden ahead of Iowa caucuses Four endings to the Senate's impeachment trial — and none is good for Democrats Jeffries, Nadler showcase different NY styles in Trump trial MORE or whoever the Republicans get stuck with," she responded, referencing the vice president.

The front-runners have faced scrutiny over their ages, with Biden and Sanders in particular facing some questions.