(Image source from: ABC News)

The United States President Donald Trump warned evangelical leaders that if Republicans in the midterm elections lose control of Congress, Democrats will institute change "quickly and violently", according to a media report.

On Monday, at a meeting with those leaders at the White House, Trump said everything was at stake for his conservative agenda if his party loses in November, according to an audiotape of the meeting obtained by The New York Times.

Democrats "will overturn everything that we've done and they'll do it quickly and violently," Trump said, according to the Times report published on Wednesday night. "They will end everything immediately."

"When you look at Antifa," he added, referring to militant leftist anti-fascism groups, "and you look at some of these groups, these are violent people."

The Times said a White House spokesman, Hogan Gidley, declined to expand on what the President meant. It was not the first time Trump has warned of violence if things did not go his way.

Trump, during the 2016 presidential campaign, said his supporters would probably react violently if he did not win the Republican nomination. "I think you'd have riots," he warned.

The Times said reporters were allowed to listen in on brief comments by Trump during the Monday meeting with ministers and pastors and heard him talk about abortion, religious freedom and youth unemployment.

According to a report by Times, but after the Press was shown out of the room, Trump changed the subject and suggested how the evangelical leaders could help Republicans win in Nov. "I just ask you to go out and make sure all of your people vote," Trump said. "Because if they don't - it's November 6 - if they don't vote we're going to have a miserable two years and we're going to have, frankly, a very hard period of time because then it just gets to be one election - you're one election away from losing everything you've got."

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Meanwhile, Search engine Google on Tuesday denied the claims its search engines are "biased towards any political ideology", therefore reacting to Trump's accusation those search algorithms are planned to mute conservative voices.

By Sowmya Sangam