Donald Trump criticized for ‘told you so’ tweet as horror of Orlando massacre emerged: Candidate began with ‘appreciate the congrats’ for predicting terror attack

Donald Trump has once more  caused outrage with his Twitter postings, after thanking his followers for congratulating him about 'being right on radical Islamic terrorism'.

The presumptive Republican candidate took to Twitter after the Orlando massacre to ask 'when will we get tough, smart & vigilant?' and demand Obama's resignation if he didn't mention Islamic terrorism.

But his later Tweet, which began 'Appreciate the congrats for being right on radical Islamic terrorism,' caused an outcry from followers who said he was using the deaths of innocent Americans to score points and 'bask in congratulations', ABC News reported.

'Congrats': Donald Trump suggested that many of his supporters were sending him 'congrats' for being right about radical Islamic terrorism - infuriating many who said he was scoring points on the deaths of Americans

'Not a leader': Star Trek actor and LGBT rights campaigner George Takei said Trump's 'basking in congratulations' was proof that he should not be president

'Stain': Gossip blogger Perez Hilton said that Trump was a 'stain on humanity' and 'the lowest of the low' 

'Awful': Musician John Legend, a staunch Democrat and Obama fan, simply said: 'Trump is truly an awful person'

Disgusted: But there was outcry from conservatives, too, such as TV host Meghan McCain, daughter of John McCain,  who objected to Trump 'congratulating himself'

Reaction: Trump reacted to the Orlando massacre by saying that Obama and Hillary should step down if they didn't reference 'radical Islamic terrorism'

In the Tweet Trump added: 'I don't want congrats, I want toughness and vigilance. We must be smart!' 

The response to the Tweet was instantaneous - and overwhelmingly negative, both from liberals and conservatives. 

Star Trek actor and LGBT campaigner George Takei said, 'Once again, Donald, you have shown why you cannot lead us. 50 people are dead, and you bask in congratulations.'

Gossip blogger Perez Hilton didn't hold back, fuming: '@realDonaldTrump You are a stain on your children and humanity!!! You are the lowest of the low!!!!!!!' 

And musician John Legend simply said, 'Trump is truly an awful person.'

They were joined in their condemnation by conservative TV host Meghan McCain, daughter of John McCain, who said: '@realDonaldTrump You're congratulating yourself because 50 people are dead this morning in a horrific tragedy?' 

'Badly worded': Even some supporters of Trump said they didn't like his remark - such as 'Chris from Pitt', a self-described Trump supporter, who admonished him for turning the tragedy into a 'humble brag'

'Drop out': Conservative Christian Rob Gondwe said that Trump should drop out of the race and 'let someone qualified handle the mess Obama and Democrats made out of (our) country'

'Childish': This user described Trump's remarks about the congratulations he received as 'childish, arrogant, thoughtless'

But it wasn't just celebrities who came out swinging: hundreds of responses from regular users also stacked up, the vast majority negative.

Rob Gondwe, who describes himself as 'Christian and conservative' on his profile, said: '@realDonaldTrump if you are smart you will drop out of race and let someone qualified handle the mess Obama and democrats made of country.'

And a user simply named 'Chris from Pitt,' who gleefully calls himself 'Trump conservative!' in his profile, admonished Trump for his tone.

'@realDonaldTrump this was worded so badly. The events prove you're right; this did not need to be a humble brag. Please think next time,' he said.

Adam Mordecai, an editor at Upworthy remarked: '@realDonaldTrump FYI: turning worst mass shooting in US history into a Trump humble brag isn't smart. It's childish, arrogant, thoughtless.'

'Victory lap': The blowback kept coming, as one user described Trump's remarks as a 'victory lap' from a 'five-year-old narcissist'

'Flip-flopper': User Rich Miner took the opportunity to remind Trump of the remarks he made in 2012, when he said her agreed with Obama's stance on gun control after the Sandy Hook shooting that left 20 children dead

Carmichael Craig responded: '@realDonaldTrump 50 dead, 53 wounded and this scumbag is taking a victory lap. No condolences. No sympathy. Just a 5 year old narcissistic. (sic)'

And Rich Miner drew on comments by other political figures, including Hillary Clinton, about the need for tighter gun control laws by pointing out Trump's inconsistent history with gun control remarks.

'@realDonaldTrump You correctly agreed w/@BarackObama after #newtown,' he said. 'No. 1 factor in Mass murders is guns, not religion #FlipFlopping4votes'

He was referencing a Tweet Trump made in 2012 after the Sandy Hook massacre, in which 20 children were gunned down, when the businessman said 'President Obama spoke for me and every American in his remarks in [Newtown,] Connecticut.'

Obama had told the press that there could be no 'excuse for inaction' in bringing in gun control measures.

But Trump did get a few grains of support in the sandstorm of indignation.

Jay Soderland said: '@realDonaldTrump we love you Don & knew you were right! We did not submit to the PC spiral of silence! We need you! #IWillNotSubmit #MAGA'

And Truth Talker enthused: '@realDonaldTrump well said'

'Right': There was some support among the vitriol, however - such as this user who felt that Trump has escaped 'the PC spiral of silence'

'Well said': This user kept their support short and sweet

Trump had begun the day making Twitter followers aware of the shooting, before returning to attacking Clinton - this time for a new general election ad.

He later penned more Tweets about the tragedy in Orlando, in which a gunman entered a gay nightclub and mowed down 50 people, leaving another 53 injured.

The Republican presumptive nominee has often talked about taking on 'radical Islamic terrorism,' and according to the FBI, the gunman, 29-year-old Omar Mateen of Port St. Lucie, Florida, has 'leanings to radical Islamic terrorism'. 

Later Trump released a statement that hit both President Obama and Clinton, saying they should both get out of government if they can't say 'radical Islamic terrorism.'

Acknowledgement: Donald Trump initially just let his readership know about the Orlando shooting and then went back to attacking Hillary Clinton on Twitter

'In his remarks today, President Obama disgracefully refused to even say the words "Radical Islam." For that reason alone he should step down,' he said.

'If Hillary Clinton, after this attack, still cannot say the two words "Radical Islam" she should get out of this race for the presidency,' he added.

The statement claimed that political correctness is hindering the fight against terrorism. 

The alleged gunman was born in New York from parents who were from Afghanistan, though Trump still touted his controversial plans for a ban of all non-American Muslims coming into the United States. 

'What has happened in Orlando is just the beginning,' Trump tweeted. 'Our leadership is weak and ineffective. I called it and asked for the ban. Must be tough.' 

Update: He then updated his response several hours later asking 'when will we get tough, smart & vigilant?' and calling the shooting a 'horrific incident' 

Dare: Donald Trump dared President Obama to use the term 'radical Islamic terrorism' in his remarks to the American public. The president did not 

Ban: Donald Trump doubled down on his plans to ban non-American Muslims from entering the United States despite the fact that the shooter was an American