Cardiologist urges Congress to probe Trump’s fitness for office

 January 20, 2026

Could a single letter from President Trump unravel questions about his capacity to lead?

On Monday, Dr. Jonathan Reiner, a cardiologist known for treating the late Vice President Dick Cheney and a CNN medical analyst, publicly demanded a bipartisan congressional inquiry into President Trump’s fitness for office. The call came after a letter from Trump to Norwegian Prime Minister Jonas Gahr Støre, which was also shared with multiple European ambassadors, raised eyebrows. In the message, Trump reportedly challenged Denmark’s claim over Greenland, a semiautonomous Arctic territory rich in minerals and vital to regional security.

Trump’s Greenland Obsession Sparks Concern

Dr. Reiner pointed to the letter’s content, where Trump seemingly tied his ongoing push to acquire Greenland to personal grievances, including not receiving a certain prestigious award. The letter’s distribution to other European nations amplified the unease. This isn’t a minor diplomatic spat—it’s a signal of deeper issues, according to some observers.

The issue has sparked debate across political lines, with questions arising about whether such actions reflect sound judgment or something more troubling. While Trump has insisted on social media that he is in “perfect health” and has “aced” cognitive exams multiple times, not everyone is convinced. Public statements like these beg for scrutiny, not blind acceptance, as The Hill reports.

Let’s unpack this Greenland fixation. Trump’s repeated efforts to claim the territory, despite clear resistance from European allies, have stirred alarm both domestically and abroad. Why keep pushing a policy that seems to isolate rather than unite?

Reiner’s Call for Bipartisan Oversight

Dr. Reiner’s plea for a congressional review isn’t just a medical opinion—it’s a warning bell. He posted on X, “This letter, and the fact that the president directed that it be distributed to other European countries, should trigger a bipartisan congressional inquiry into presidential fitness.” That’s not a casual suggestion; it’s a demand for accountability.

But is this overreach? Some might argue that questioning a sitting president’s fitness based on a letter risks politicizing health concerns. Yet, when actions appear erratic, shouldn’t both parties at least ask the hard questions?

Reiner isn’t new to this conversation. Last month, he criticized Trump’s reported aspirin regimen as something that “makes no sense” in a medical context. That comment alone raises doubts about whether the president’s health decisions are grounded in reason.

Political Reactions and 25th Amendment Talk

On the political front, Rep. Yassamin Ansari, a Democrat from Arizona, didn’t hold back after seeing the letter. She’s openly called for invoking the 25th Amendment, claiming the president’s behavior poses a risk. That’s a drastic step, and one that deserves serious debate, not knee-jerk reactions.

Ansari’s stance, while bold, might strike many as premature. The 25th Amendment isn’t a casual tool—it’s a constitutional safeguard for extreme circumstances. Rushing to wield it without exhaustive inquiry could undermine trust in governance itself.

Still, the letter’s content, where Trump questions Denmark’s “right of ownership” over Greenland, fuels the fire. Why challenge a long-standing territorial arrangement in such a public, combative way? It’s a diplomatic puzzle that doesn’t seem to fit a strategic playbook.

Greenland’s Strategic Importance Under Scrutiny

Greenland isn’t just a piece of land—it’s a mineral-rich stronghold critical to Arctic security. Trump’s persistence in pursuing it, despite pushback, suggests he sees something others don’t, or perhaps overlooks the broader alliances at stake. The tension this creates with European partners can’t be ignored.

For supporters, this could be framed as a visionary move—securing resources and influence in a contested region. But when allies bristle and domestic critics pounce, the cost-benefit ratio looks shaky at best. Vision shouldn’t come at the expense of cohesion.

What’s next for this saga? Dr. Reiner’s call for an inquiry, paired with political demands like Ansari’s, ensures this won’t fade quietly. The balance between questioning leadership and respecting the office hangs in a delicate, uneasy limbo.