Donald Trump has a message for the media: You don’t matter.

Facing attacks from all sides over his feud with Khizr Khan — the father of a slain US Muslim soldier who blasted Trump at the Democratic National Convention — the GOP nominee told his supporters to ignore all the coverage.

“We have a media that is so dishonest. These are among the most dishonest people you will ever, ever meet,” Trump said in Harrisburg, Pa., on Monday.

“We are going to punch through the media. We have to.”

Trump found great success attacking the mainstream media on his way to the nomination — calling journalists “scum” and even pulling the credentials from The Washington Post. He also bypassed the press by communicating directly with his 10.6 million Twitter followers.

His call to ignore the media comes amid a slew of negative reports about his reaction to Khan’s DNC speech.

Trump implied after the address that Ghazala Khan, the mom of hero Army Capt. Humayun Khan, stood silently at her husband’s side because Islam forbade her from speaking.

On Monday, condemnation came from fellow Republicans, including Arizona Sen. John McCain, a former POW, who said, “While our party has bestowed upon him the nomination, it is not accompanied by unfettered license to defame those who are the best among us.”

Also in Harrisburg, Trump took aim at Democratic rival Hillary Clinton — calling her “the devil.”

Trump was talking about Bernie Sanders’ capitulation in the Democratic race and said the Vermont senator “made a deal with the devil” when he agreed to back Clinton.

Trump then said: “She’s the devil.”

Trump also turned his rhetorical guns on the highest-ranking elected official in his own party, by tweeting out a positive message to House Speaker Paul Ryan’s GOP primary opponent.

“Thanks to @pnehlen for your kind words, very much appreciated,” the GOP nominee wrote to businessman Paul Nehlen, who is trying defeat Ryan in Wisconsin’s 1st Congressional district.

It’s was not clear what prompted the tweet, although earlier in the day Ryan had referred to Trump, without mentioning his name, as a “different kind of nominee.”

Ryan refused to respond to Trump’s Twitter provocation.

Trump, meanwhile, fired two high-ranking aides, including Ed Brookover, who helped his campaign organize the Republican National Convention, Politico reported.