The investigation led by Robert S. Mueller III found that neither President Trump nor any of his aides conspired or coordinated with the Russian government’s 2016 election interference, according to a summary of the special counsel’s findings made public on Sunday by Attorney General William P. Barr.Mr. Barr also said that Mr. Mueller’s team drew no conclusions about whether Mr. Trump illegally obstructed justice.

President Trump said on Sunday that a Trump Tower meeting between top campaign aides and a Kremlin-connected lawyer was designed to “get information on an opponent” — the starkest acknowledgment yet that a statement he dictated last year about the encounter was misleading.