A political action committee is joining the debate on Republican presidential front-runner Donald Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE’s hands.

Trump Has Tiny Hands PAC was launched Monday by Portland, Ore., resident Henry Kraemer.

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The size of Trump’s hands — and another appendage — has become fodder on the campaign trail.

“You know what they say about men with small hands … you can’t trust 'em!” Marco Rubio Marco Antonio RubioFlorida senators pushing to keep Daylight Savings Time during pandemic Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Intelligence chief says Congress will get some in-person election security briefings MORE quipped in late February.

During a Republican debate days later, Trump responded to Rubio’s jab.

“I have to say this: He hit my hands. Nobody has ever hit my hands. I’ve never heard of this one. Look at those hands — are they small hands?” Trump asked. “He referred to my hands — if they are small, something else must be small. I guarantee you, there’s no problem.”

Trump has since defended the remark and accused Rubio of lying.

“I didn’t bring it up, somebody else said, ‘Donald Trump has small hands’” the front-runner said at a press conference Saturday. “What happened is Marco made it up because he’s a politician and politicians lie and they say bad things.”

“The day after, I’m shaking hands with people and everybody’s saying ‘wow you have strong hands, you have very big hands,'” he added.

Kraemer said he decided to start the PAC when Trump began "to deny he has tiny baby hands."

"When a call comes into the White House at 3 a.m., will Donald Trump's tiny baby hands be able to lift the phone receiver? This is something Americans should know before voting," Kraemer said in an interview with The Hill.

Kraemer said he has not decided who he is voting for.

Updated at 4:23 p.m.