New national polling shows Marco Rubio leading JD Vance among Republican voters, a reversal from last winter, with Trump publicly weighing a Vance‑Rubio pairing even as he stops short of an endorsement.

The latest AtlasIntel survey, conducted May 4 and 7 with 2,069 American adults, puts Secretary of State Marco Rubio ahead among Republican respondents with 45.4% to Vice President JD Vance’s 29.6%. That marks a dramatic flip from the same pollster’s December numbers, when Vance led Rubio 46.7% to 22.6%. The new snapshot also shows Ron DeSantis at 11.2%, 10.3% undecided or preferring someone else, and Vivek Ramaswamy at 1.4%.

The speed of the shift is striking: Rubio gained roughly 22 points among Republican respondents while Vance fell about 17 over five months. Polling that far ahead of a primary deserves caution, but such a swing changes how donors and operatives think about 2028 strategy. Name recognition, current office, and media exposure are clearly playing major roles in these numbers.

President Trump stirred the air around succession when he tested a crowd at the White House, asking, “Who likes JD Vance? Who likes Marco Rubio?” and calling a potential pairing a “dream team” before pulling back from a formal endorsement. That live exchange—reported by observers at the event—did not translate into an immediate boost for Vance in the national sample. Rubio’s lead suggests his appeal reaches beyond a single sympathetic crowd.

“By the way, I do believe that’s a dream team. But these are minor details. That does not mean you have my endorsement under any circumstance!”

Republican voters watching these trends have to weigh electability as much as loyalty. Public favorability figures underline the worry: 58% of the general public reportedly hold a negative view of Vance versus 37% positive, while Rubio sits closer to even with 51% negative and 46% positive. Those gaps matter in a general election where swing voters make the difference.

Longtime commentator Mark Halperin offered a blunt take on performance and likability when comparing the two men, and his line of thinking has found resonance among strategists weighing future matchups. Observers note that Rubio’s current diplomatic platform keeps him in front of audiences on foreign policy and national security, areas where track record can influence perceptions beyond the base.

“I will say that in the next two years, as people in the party and the media are comparing Rubio and Vance side-by-side, I don’t think Vance can win’em, win the performance competition. I don’t think the-, I, don’t, and the likability. I may be wrong, but I just think Rubio has improved enough and the perceptions are such that Vance is going to have a hard time of people looking at him in a press conference, in an interview on the stump, whether he drops his nasty tweet persona or not, I think he’s going to have a hard time winning that.”

Halperin also proposed a theory about friendship and strategy: that Rubio and Vance are close enough personally that they might avoid scorched‑earth primary fights. Political campaigns can be brutal, and defeating an incumbent vice president typically demands aggressive attacks that close friends may hesitate to launch. That possibility reshapes how the party thinks about whether both run, one steps aside, or they pair up.

“These two guys are genuine friends, and even though people tell me I’m naive, you cannot beat an incumbent vice president running for president unless you rip their face off. That’s just the way our politics work. So I do not think they’ll run against each other.”

Practical factors also figure. Halperin noted family considerations and the scrutiny of a presidential race as potential reasons one or both might sit 2028 out, with Vance and Rubio both balancing young families. If Vance opts out, Halperin suggested Rubio would be close to a lock for the nomination with broad backing inside the party. If they both proceed, strategists speculate about joint-ticket scenarios and heavy fundraising possibilities.

Other measures show a mixed picture: Vance won a CPAC straw poll with 53% while Rubio surged to 35% there, underlining Vance’s strength among activist conservatives even as Rubio gains more broadly. Vance has also been active in Iowa, building the kind of early-state groundwork that can sustain a long shot or a serious run. At the same time, Rubio’s visibility from diplomatic engagement and movement in prediction markets have amplified perceptions that his momentum is real.

Polls this far from the primaries are a snapshot, not a prophecy, but they force decisions now. For Republican voters and donors the choice will hinge on who can win in a general election, who can thread conservative policy commitments with broader appeal, and who can sustain momentum into caucus and primary states. In Republican politics, nothing is handed out; it is earned, and the current numbers show that the old assumptions about automatic succession no longer hold.