For years, Republicans on Capitol Hill have largely swallowed their misgivings about Donald Trump. Public dissent has been rare, even when the former president

shattered long-standing norms. But Trump’s increasingly militant rhetoric toward Denmark and Greenland appears to have crossed a red line.

This time, resistance is bubbling up — cautiously, but unmistakably.

At the center of the pushback is Steny Hoyer, the 86-year-old Democratic veteran and longest-serving Democrat in the U.S. House of Representatives. Hoyer is trying to turn the moment into concrete action by rallying bipartisan support for legislation that would explicitly reject any U.S. military aggression against Greenland.

“I think there is a broad feeling in the Congress of the United States that the discussion about Denmark is both dangerous and absurd,” Hoyer said in an interview from the Capitol.

A line too far for some Republicans

Hoyer’s effort comes as several prominent Republicans — many of whom have rarely challenged Trump — have spoken out against the idea of seizing Greenland, a self-governing territory within the Kingdom of Denmark and a NATO ally.

Former Senate Republican leader Mitch McConnell called the idea of taking Greenland from Denmark “an especially catastrophic act of strategic self-harm,” warning that it would damage relations with “one of America’s most loyal and capable allies.”

Sen. Rand Paul of Kentucky told CBS News he would “do everything in my power to stop any kind of military takeover in Greenland.”

Rep. Don Bacon of Nebraska was equally blunt on CNN: “This is terrible. Greenland is a NATO ally. Denmark is one of our best friends.”

Sen. Lisa Murkowski of Alaska wrote on X that any attempt to seize Greenland by force “would degrade both our national security and our international relations.”

Others have chosen more careful language. Senate Republican leader John Thune said he did not see military action as an option, while House Speaker Mike Johnson dismissed the issue as not being on his agenda. The White House, however, has refused to rule it out.

Escalating rhetoric from the White House

The concern intensified after the Trump administration escalated its language following a U.S. military strike on Venezuela. Deputy chief of staff Stephen Miller openly argued that the United States has the right to “take” Greenland — essentially claiming that power alone would prevent any meaningful resistance.

That argument drew a sharp rebuke from Republican Sen. Thom Tillis of North Carolina, the top Republican on the Senate’s NATO observer group. Tillis urged Miller to “stop talking about things you don’t understand or find another job,” warning that such rhetoric sends a dangerous signal to Russian President Vladimir Putin.

“When you shake the Western alliance like that, you make Putin think he’s winning,” Tillis said on CNN. “Whether they say it out loud or not, most of my colleagues agree with me.”

Denmark, Greenland, and NATO

Vice President JD Vance has defended the administration’s stance by claiming Denmark has failed to adequately secure Greenland. But Hoyer and Rep. Blake Moore, a Republican member of House leadership, strongly reject that argument.

The two lawmakers co-chair the bipartisan Congressional Friends of Denmark caucus. In a joint statement, they noted that Denmark has consistently allowed the U.S. to expand its military presence in Greenland when requested.

“If we want to deploy more forces or build additional missile defense infrastructure in Greenland, Denmark has given us a green light,” they said. “Threatening to annex Greenland needlessly undermines that cooperation for no gain.”

The United States is already treaty-bound to help defend Greenland, though it has closed most of its own military installations there over the years.

Buying Greenland — under threat?

Secretary of State Marco Rubio has recently suggested that the U.S. might try to “buy” Greenland instead of taking it by force. Hoyer dismissed the idea as unrealistic and coercive.

“You’ve got to have a willing seller, not a seller that sells under compunction,” he said. “If you don’t sell it, we’re going to steal it — that’s not an offer.”

Both Denmark and Greenland have repeatedly made clear that Greenland is not for sale.

A fragile test of Republican independence

Hoyer, who will retire after the next election, believes this issue may finally push Republicans to actively oppose Trump — not just quietly disagree.

“In the past, there’s been a difference between not concurring and actually objecting,” he said. “This has dangerous implications for NATO’s viability and for trust in the United States. Members understand that.”

Denmark’s Prime Minister Mette Frederiksen has warned that a U.S. seizure of Greenland would effectively end the Western military alliance. Poland’s foreign minister has openly urged Congress to intervene.

Whether Republicans will go beyond words and vote for Hoyer’s bill remains uncertain. Still, the veteran lawmaker senses a shift.

“A lot of Republicans are thinking, why is the president creating a problem that does not exist?” Hoyer said. “My hope is that there will be a significant bipartisan expression of opposition to the idea that we would somehow take Greenland.”

For once, Trump’s pressure campaign may be testing the limits of his party’s loyalty — and the future of NATO itself. Photo by patano, Wikimedia commons.