Story highlights Trump hosts a campaign-style rally in Harrisburg, Pennsylvania

Trump promises a "big decision" on the Paris Accord soon

Washington (CNN) President Donald Trump hit hard at the news media at a rally Saturday in Pennsylvania to tout the accomplishments of his first 100 days, striking a tone both divisive and determined as he played to the populist sentiments of a cheering crowd.

"It's time for all of us to remember that we are one people with one great American destiny, and that whether we are black or brown or white, we all bleed the same red blood of patriots, and we all share the same glorious freedoms of our magnificent country," Trump said, evoking the populist rhetoric of his inauguration speech after spending a large part of his Saturday remarks decrying the alleged shortcomings of the mainstream media.

Among the crowd favorites at Trump rallies are the President's attacks on the press, and this was true again on Saturday, when many in the media were attending the annual White House correspondents' dinner in what Trump routinely calls the "swamp" of Washington -- setting up a prime-time duel with what has become his No. 1 foe, the media.

"A large group of Hollywood actors and Washington media are consoling each other in a hotel ballroom in our nation's capital right now," Trump told the crowd. "They are gathered together for the White House Correspondents' dinner -- without the President. And I could not possibly be more thrilled than to be more than 100 miles away from Washington's swamp, spending my evening with all of you and with a much, much larger crowd and much better people."

Trump held that divisive tone throughout the speech, prompting former presidential adviser and senior CNN political analyst David Gergen to call the remarks "deeply disturbing" in a special prime-time edition of "CNN Newsroom" with John Berman and Poppy Harlow.

Read More