Donald Trump

The DNC's computer network was infiltrated in a "serious" incident, said chairwoman Debbie Wasserman Schultz.

A cyber security firm has been hired to help, she said, to "kick out the intruders and secure our network".

Russia has denied any involvement in the hacking.

"I completely rule out a possibility that the [Russian] government or the government bodies have been involved in this," Dmitry Peskov, a Krelim spokesman, told Reuters in Moscow.

Gunman Omar Mateen — a New York-born Florida resident and US citizen who was the son of Afghan immigrants — was shot and killed by police early on Sunday morning after a three-hour siege, in which 49 people were killed.

"Goofy Elizabeth Warren, sometimes referred to as Pocahontas, pretended to be a Native American in order to advance her career. Very racist!" Trump tweeted.

Trump has repeatedly referred to Warren as "Pocahontas," referring to the senator's past claims about her Native American heritage.

Protesters also reportedly grabbed Trump hats from supporters and set the hats on fire on the ground. 

Police eventually moved into the crowd to break it up and make arrests. At least four people were taken into custody, though police didn't release total arrest figures Thursday night. One officer was assaulted, police Sgt. Enrique Garcia said. 

A speech that was billed as a major foreign policy address instead unfolded as a savage, mocking evisceration of Donald Trump Thursday as the former secretary of state adopted an aggressive new campaign persona designed to repel the unpredictable challenge posed by the presumptive Republican presidential nominee.

In one of the most striking speeches of her political career, Clinton dispensed with the sober diplo-speak that has characterized her previous national security addresses and went straight for the jugular, unleashing a series of biting attacks on Trump.

Mr Trump said the PGA had "put profit ahead of thousands of American jobs".

On the campaign trail, Mr Trump has portrayed Mexico as undermining the US economy.

Why has Trump caught Clinton in the polls?

PGA Tour commissioner Timothy Finchem said Mr Trump's current profile had made it "difficult" to attract sponsors.

"It's fundamentally a sponsorship issue," said Mr Finchem.

Luxury car maker Cadillac has reportedly not renewed its sponsorship deal.

"We're not going to allow that to happen any longer," he told a bikers' rally in Washington DC.

Mr Trump did not provide any evidence for his assertion.

Last year, the billionaire sparked anger by attacking the military record of Senator John McCain, a former prisoner of war.

Mr Trump said Sen McCain was only considered a hero because he was a prisoner of war during the Vietnam War.

He then added: "I like people who weren't captured."

Mrs Clinton's double-digit lead, which she has held over the past several months, has vanished - and with it, apparently, Democrats' dreams of a transformational 2016 victory that would leave Republicans wandering the wilderness for a generation.

What happened? A closer look at those poll numbers offers some clarity.

Police in riot gear fired smoke grenades into the crowd. Protesters also interrupted Mr Trump's speech at the rally in Albuquerque.

Mr Trump, the presumptive Republican presidential nominee, wants a wall to be built along the border with Mexico.

New Mexico is the most Hispanic state in the US.

'Still in diapers'

The protesters had gathered outside the Albuquerque Convention Center, with banners that read "Trump is Fascist" and "We've heard enough".

Clinton leads Trump 46-to-43 percent in a NBC News/Wall Street Journal poll, compared to a similar one in April in which Clinton had an 11-point lead.

The new poll also shows Clinton primary rival Vermont Sen. Bernie Sanders leading Trump by 15 percentage points, 54-to-39 percent, in a hypothetical November matchup.

“Polls this far out mean nothing,” Clinton said on NBC’s “Meet the Press.” “They certainly mean nothing to me. And I think that if people go back and look, they really mean nothing in terms of analyzing what's going to happen in the fall.”