Colbert Reveals The Alarming Habit He Shares With Both Trump And Biden

President Donald Trump and former Vice President Joe Biden were both in Iowa at the same time on Tuesday, and “Late Show” host Stephen Colbert has some theories on why.

“Either because it’s the first primary state or because Kevin Costner needed more old guys to walk out of the cornfield,” he cracked.

Biden, who is running for the 2020 Democratic nomination, has repeatedly attacked Trump, who in turn has slammed the former vice president as “weak mentally.”

But Colbert said the two have one key thing in common... a trait he admitted that he shares as well:

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<p>Hillary Clinton poses for photos with fans.</p>

Hillary Clinton poses for photos with fans.

<p>Hillary Clinton enjoys a pork chop and lemonade.</p>

Hillary Clinton enjoys a pork chop and lemonade.

Hillary&nbsp;Clinton hugs a friend while touring the Iowa State Fair.
Hillary Clinton hugs a friend while touring the Iowa State Fair.
<p>Hillary Clinton looks up at crowds of supporters.</p>

Hillary Clinton looks up at crowds of supporters.

<p>Wisconsin Gov. Scott Walker (R) bites into a pork chop at the Iowa Pork Producers Association stand.</p>

Wisconsin Gov. Scott Walker (R) bites into a pork chop at the Iowa Pork Producers Association stand.

<p>Scott Walker flips meat alongside his wife, Tonette, center, and Iowa Lt.&nbsp;Gov.&nbsp;Kim Reynolds.</p>

Scott Walker flips meat alongside his wife, Tonette, center, and Iowa Lt. Gov. Kim Reynolds.

<p>Former Maryland Gov. Martin O'Malley (D) greets fairgoers.</p>

Former Maryland Gov. Martin O'Malley (D) greets fairgoers.

<p>Republican presidential candidate Carly Fiorina shares her "diabetic lemonade" with Teresa Tehoke, 2, as her sister, Maire, 6, watches.</p>

Republican presidential candidate Carly Fiorina shares her "diabetic lemonade" with Teresa Tehoke, 2, as her sister, Maire, 6, watches.

<p>Carly Fiorina flips pork loin at the Iowa Pork Producers Association stand.</p>

Carly Fiorina flips pork loin at the Iowa Pork Producers Association stand.

<p>Carly Fiorina squeezed past reporters and pots of corn during a visit to The Corn Stand.</p>

Carly Fiorina squeezed past reporters and pots of corn during a visit to The Corn Stand.

Republican presidential candidate Donald Trump arrives at a nearby ballpark by helicopter.
Republican presidential candidate Donald Trump arrives at a nearby ballpark by helicopter.
<p>Donald Trump&nbsp;leaves the state fair in his golf cart.</p>

Donald Trump leaves the state fair in his golf cart.

Former Arkansas Gov. Mike Huckabee (R) samples a pork chop.
Former Arkansas Gov. Mike Huckabee (R) samples a pork chop.
<p>Sen. Bernie Sanders (I-Vt.)&nbsp;greets supporters after giving a speech.</p>

Sen. Bernie Sanders (I-Vt.) greets supporters after giving a speech.

<p>Bernie Sanders&nbsp;takes a moment to cool off.</p>

Bernie Sanders takes a moment to cool off.

<p>Former&nbsp;Sen. Jim Webb (D-Va.) poses for a selfie.</p>

Former Sen. Jim Webb (D-Va.) poses for a selfie.

Republican presidential candidate Ben Carson flips pork burgers.
Republican presidential candidate Ben Carson flips pork burgers.
<p>Ben Carson eats a slice of pizza.</p>

Ben Carson eats a slice of pizza.

Ben Carson rides a chairlift with a reporter.
Ben Carson rides a chairlift with a reporter.
<p>Sen. Lindsey Graham (R-S.C.) takes a bite out of a pork chop at the Iowa Pork Producers Association stand.</p>

Sen. Lindsey Graham (R-S.C.) takes a bite out of a pork chop at the Iowa Pork Producers Association stand.

<p>Former Florida Gov. Jeb Bush (R) flips a pork chop on a grill at the Iowa Pork Tent.</p>

Former Florida Gov. Jeb Bush (R) flips a pork chop on a grill at the Iowa Pork Tent.

<p>Jeb Bush eats a pork chop on a stick at the Iowa Pork Producers Association stand.</p>

Jeb Bush eats a pork chop on a stick at the Iowa Pork Producers Association stand.

<p>Former Sen.&nbsp;Rick Santorum (R-Pa.) manages the grill as he cooks pork chops.</p>

Former Sen. Rick Santorum (R-Pa.) manages the grill as he cooks pork chops.

Rick Perry tries a vegetarian corndog.
Rick Perry tries a vegetarian corndog.
<p>An attendee places a corn kernel into a jar to vote for Donald Trump in a television news station's "Cast Your Kernel" voting booth.</p>

An attendee places a corn kernel into a jar to vote for Donald Trump in a television news station's "Cast Your Kernel" voting booth.

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This article originally appeared on HuffPost.