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WASHINGTON (CBSMiami) – President Barack Obama delivered a scathing speech in response to Donald Trump’s accusations he is not tough enough in fighting terrorist groups.

The remarks fall on primary day in Washington, D.C. – a race that is essentially meaningless when it comes to determining the presidential nominees.

But a meeting between the democratic nominees could be telling.

“We now have proposals  from the presumptive Republican nominee for President of the United States to bar all Muslims from emigrating to America,” Obama said. “Where does this stop?”

President Obama held nothing back in a piece-by-piece take down of Trump’s criticism about his handling the war on terror.

Trump suggests the president has ulterior motives for not using the term “radical Islam.”

“I can’t define it. I mean, nobody knows what’s going on. Nobody knows why he doesn’t have more anger,” Trump said on Fox News program “The O’Reilly Factor.”

The president said that would come as news to the terrorists killed around the world on his watch.

And he rejects Trump’s notion that calling them a certain name has any impact.

“There’s no is no magic to the phrase radical Islam. It’s a political talking point, it’s not a strategy,” he said.

At a campaign event in Pittsburgh, Pennsylvania, Hillary Clinton called out trump’s views on gun control.

“He’s been very clear about what he won’t do. He won’t stand up to the gun lobby… the terrorist did it with two guns,” Clinton said.

Clinton is heading here to Washington Tuesday evening where she is scheduled to meet with Bernie Sanders.

The Vermont senator has not formally dropped out of the Democratic presidential race, but it’s clear he’s ready to work with – not against – Clinton.

“What kind of administration she will have and whether or not she will stand up forcefully for working families and be prepared to take on Wall Street,” Sanders said.

Sanders has promised to do whatever he can to prevent Trump from winning the presidency.

House Speaker Paul Ryan held a press conference Tuesday morning in which he rejected Trump’s proposed Muslim ban. He said it is not in the country’s best interest.

Trump met with a group of Republican governors in New York City.