VIDEO-Donald Trump slams Hillary Clinton after Democratic National Convention

Republican presidential candidate Donald Trump says he's "taking the gloves off" in the presidential race, saying, "no more Mr. Nice Guy."

US Republican Presidential Candidate Donald Trump talks tough about Hillary Clinton. Picture: AFP/ Jason Connolly

US Republican presidential nominee Donald Trump says he’s taking the gloves off in his battle against Democrat Hillary Clinton in the race for the White House, after taking a scorching from speakers at the Democratic National Convention.

Trump wrapped up a five-day, seven-state campaign swing in Colorado, where for a fifth straight day his supporters chanted “lock her up” whenever he brought up Clinton’s name.

Republican presidential candidate Donald J. Trump says Hillary Clinton deserves to be prosecuted for her handling of US foreign policy. Picture: Stacie Scott/The Gazette via APSource:AP

Trump supporters say Clinton deserves to be prosecuted for her handling of US foreign policy as President Barack Obama’s first-term secretary of state and for her use of a private email server while in that office.

All week Trump has sought to tamp down the chants by stressing that his main goal is to simply beat Clinton in the November eight presidential election.

But as the crowd chanted the slogan in Colorado Springs, Trump finally relented.

“I’m starting to agree with you, frankly,” he said. “No more Mr Nice Guy.”

Trump was a punching bag at the Democratic convention in Philadelphia, which wrapped up on Thursday night, as speaker after speaker — including some Republicans — said he lacked the temperament to be president. Clinton herself said in her acceptance speech that the election represented a “moment of reckoning” for the country.

Republican presidential nominee Donald Trump said Hillary Clinton "should have congratulated me," for having "done something that nobody has ever done in history." Rough Cut (no reporter narration).

Trump condemned the optimistic picture of the nation that Clinton painted.

He said Clinton was “talking last night about how wonderful things are.”

“She made it sound like everything is rosy-dory,” Trump said.

“Things are not rosy-dory, folks.”

He claims Clinton ignored recent terror attacks and disturbing trends in long-term unemployment and housing purchases.

Later in his stump speech, Trump got sidetracked by a couple of disputes from last year as he tried to rebut a Clinton campaign ad.

Republican presidential nominee Donald Trump kisses three-month-old Kellen Campbell, right, and holds six-month-old Evelyn Keane, after making a speech. Picture: Joe Mahoney/Getty Images/AFPSource:AFP

That ad uses video clip from Trump’s attack on Fox News anchor Megyn Kelly in protest of her questioning of him at a debate of Republican presidential contenders last August when he said afterwards that blood was “coming out of her eyes, coming out of her wherever.”

“I was talking about her nose,” Trump said in Colorado Springs. “I wanted to get back on the issue of taxes” at the debate.

Trump also brought up the case of disabled New York Times reporter Serge Kovaleski, whom Trump seemed to mock publicly in video used by the Clinton ad.

Trump said he was depicting the reporter grovelling to him.

“I didn’t know he was disabled. I didn’t know it at all. I had no idea,” he said.