Democratic insiders say a clean sweep by New York City Mayor Zohran Mamdani's three endorsed House candidates on Tuesday has shifted Rep. Alexandria Ocasio-Cortez, D-N.Y., away from a long-rumored Senate challenge to Senate Minority Leader Chuck Schumer, D-N.Y., and toward a potential 2028 presidential bid, as the party's progressive wing presses its advantage in primaries from Maine to Minnesota.

Former city comptroller Brad Lander unseated Rep. Dan Goldman, D-N.Y., in the 10th District, state Assemblywoman Claire Valdez took the open Brooklyn-Queens 7th, and community organizer Darializa Avila Chevalier edged Rep. Adriano Espaillat, D-N.Y., chair of the Congressional Hispanic Caucus, by roughly 2,000 votes in the Upper Manhattan 13th.

The Associated Press called all three.

Adam Green, co-founder of the Progressive Change Campaign Committee, called the result a "political earthquake" and told the New York Post the odds of an Ocasio-Cortez presidential run had jumped, by his estimate, "from 5% to 20%."

A longtime New York Democratic operative told the paper that Ocasio-Cortez has "never itched to be a senator, one of 100," and would not relish serving as the junior senator to Sen. Kirsten Gillibrand, D-N.Y.

Ocasio-Cortez, 36, declined to discuss her ambitions directly but told the Post that Tuesday's results clear a path for "a candidate that fights for guaranteed health care for every American, raising wages, and taking on a lot of the corporate corruption that's driving up prices."

Asked separately about a Senate bid, she told Fox News she was "not going to be breaking any news here."

The New York results sit inside a broader fight.

In Maine, oysterman Graham Platner won the June 9 Democratic Senate primary with 74.6%, after Sen. Bernie Sanders, I-Vt., backed him early,

Maine Gov. Janet Mills, (D), a Schumer recruit, suspended her campaign in April amid lopsided polling and fundraising.

In Michigan, a Sanders ally is leading the open-seat Democratic field heading into the Aug. 4 primary.

A Lake Research Partners survey released by the campaign of physician Abdul El-Sayed put him at 42% to 33% for Schumer-aligned Rep. Haley Stevens, D-Mich.

In Minnesota, polling has split: a May Public Policy Polling survey commissioned by the Democratic Lieutenant Governors Association put Lt. Gov. Peggy Flanagan ahead of Rep. Angie Craig, D-Minn., 44-33, while a June KSTP/SurveyUSA poll showed Craig leading 41-36, within the margin of error.

Methodology details for the campaign-released poll were not fully disclosed.

Schumer declined to address his own future or a potential Ocasio-Cortez run, telling the Post his focus is "taking back the Senate and reversing the damage Donald Trump has done."

One establishment Democrat aide told the paper Ocasio-Cortez has "real respect for, and perhaps even an affinity for, Schumer," raising the prospect that he could ultimately back her if she ran nationally rather than at home.

Republicans cast the trend as a gift.

Bernadette Breslin, national press secretary for the National Republican Senatorial Committee, said the "Sanders-Mamdani slate" stands to "inflict crippling tax hikes on voters across the Senate map."

Alyssa Brouillet, communications director for Michigan GOP Senate candidate, and former Rep. Mike Rogers told the Post that there is "no longer" a socialist wing of the Democrat Party, adding, "it is the Democrat Party."