Washington-based federal prosecutors plan to aggressively pursue charges against NYPD cop Daniel Pantaleo for the chokehold death of Eric Garner on Staten Island, a law enforcement source told The Post on Tuesday.

“It’s going to happen sooner than later,” the source said of an indictment. “Washington wants to indict him.”

Federal investigators in Brooklyn were replaced by DC counterparts because of their reluctance to bring charges, the source said.

The New York feds are privately seething. They accused their Beltway colleagues of trying to “make an example out of Pantaleo” at any cost, said one source familiar with the case.

“We already … came to a conclusion which they didn’t like. It’s truly disgraceful what they’re doing,” the source said.