UPDATE: The Hillary Clinton campaign responded to Donald Trump's remarks that he'd "called" the Orlando nightclub attack, and that it proved his proposed ban on Muslim immigrants was needed. Clinton communications director Jennifer Palmieri released this statement (via CBS News):

"Donald Trump put out political attacks, weak platitudes and self-congratulations," Jennifer Palmieri wrote of his response to the Orlando shooting. "Trump has offered no real plans to keep our nation safe and no outreach to the Americans targeted, just insults and attacks. In times of crisis more than ever, Americans are looking for leadership and deserve better."

See original story below.

Not long after President Obama addressed the nation and presumptive Democratic nominee Hillary Clinton weighed in on Facebook with their reaction to the worst mass shooting in U.S. history, Donald Trump released his own statement criticizing their responses.

Here's the beginning of Trump's statement, where he calls for Barack Obama to step down from the presidency because he "refused" to say "radical Islam."

Last night, our nation was attacked by a radical Islamic terrorist. It was the worst terrorist attack on our soil since 9/11, and the second of its kind in 6 months. My deepest sympathy and support goes out to the victims, the wounded, and their families.

In his remarks today, President Obama disgracefully refused to even say the words 'Radical Islam'. For that reason alone, he should step down. If Hillary Clinton, after this attack, still cannot say the two words 'Radical Islam' she should get out of this race for the Presidency.

Trump went on to say that he predicted such an attack would happen:

Because our leaders are weak, I said this was going to happen -- and it is only going to get worse. I am trying to save lives and prevent the next terrorist attack. We can't afford to be politically correct anymore.

The terrorist, Omar Mir Saddique Mateen, is the son of an immigrant from Afghanistan who openly published his support for the Afghanistani Taliban and even tried to run for President of Afghanistan. According to Pew, 99% of people in Afghanistan support oppressive Sharia Law.

We admit more than 100,000 lifetime migrants from the Middle East each year. Since 9/11, hundreds of migrants and their children have been implicated in terrorism in the United States.

On Twitter, Trump said he "appreciated the congrats," alluding to his proposed ban on allowing Muslims to enter the country. Mateen, who has been identified as the lone shooter in the Orlando attack, was born in New York and was a U.S. citizen. His parents reportedly immigrated to the U.S. from Afghanistan.

Speaker of the House Paul Ryan, who recently announced that he will endorse Trump for president, released his own statement about the attack via Twitter.

Vigils for the victims of the Orlando attack are scheduled across the country and there are several ways people can help in wake of the tragedy