Now that Mayor de Blasio has four more years in City Hall, New Yorkers can expect to see even less of him in the Big Apple.

De Blasio doubled down Sunday on plans to hop “all around” the country in support of progressive causes — arguing the best way for the left to succeed is to hammer away on issues of economic fairness.

He again swatted away speculation he harbors White House ambitions as well, but declined to say who should pick up the Democratic leadership mantle after his former boss Hillary Clinton’s devastating 2016 defeat.

“Democrats have to have the strongest most progressive message of economic change and fairness, so I think that’s even more important than a single leader emerging,” he said during a radio interview with John Catsimatidis broadcast Sunday. “I’m going to go all around the country helping to support the folks who will be part of that change and the folks who believe in that kind of vision for the party.”

De Blasio praised Sen. Chuck Schumer and Rep. Nancy Pelosi for their recent efforts to that end, as well Sen. Bernie Sanders who swore him in last Monday. He did not mention Clinton, who attended de Blasio’s 2014 swearing-in with her husband President Bill Clinton, but skipped this year’s ceremony.

Hizzoner also uncharacteristically offered muted praise for President Trump in how he conveyed an “economic vision for fairness” — despite the steady stream of criticism he’s had for him.

“That’s something Bernie Sanders did a great job with in 2016, and bluntly, Trump got a lot of that message out and attracted a lot of people,” he said. “That should not be a message that someone like Trump can beat Democrats on.”

Since coming to City Hall in Jan. 2014, de Blasio has traveled outside the country at least 11 times, including trips to Italy, Germany and France, and has taken trips outside the city at least 53 times — not including trips to Albany and Washington D.C.