It was another primary night for Republicans and Democrats, and GOP front-runner Donald Trump captured Arizona, Tuesday's biggest prize with 58 delegates.
Democrat front-runner Hillary Clinton won Arizona, and rival Bernie Sanders took Utah and Idaho.
While Trump was victorious in the Grand Canyon State, the GOP kingpin got hammered in the Utah caucuses, where rival Ted Cruz was the favored Republican candidate.
The next set of primaries and caucuses comes on the same day ISIS claimed responsibility for multiple bombings in Brussels, Belgium, that left at least 34 dead and hundreds injured.
Trump on Tuesday called for surveillance of radical Islam’s tentacles in the U.S., telling talk-radio host Michael Savage there’s “a massive, massive problem with radical Islam, whether we like it or not.”
Cruz called for law enforcement to patrol Muslim neighborhoods in the U.S. to monitor for suspicious activity.
Trump also reiterated his calls for a temporary ban on Muslims entering the U.S. if they are not citizens.
"You're going to make certain exceptions, and exceptions on heads of state and some of these people, and I'm not saying we don't do that," Trump told CNN's Wolf Blitzer. " But we have a real problem, and people don't have any idea what's going on. We have a government that's impotent, a government that doesn't get it. It doesn't understand what's happening."
Trump also told Fox News he would close America's borders: "We have to be very, very vigilant with who we let into this country. We are taking in people without real documentation. We don't know who they are or where they're from. We don't learn. ... This whole thing will get worse as time goes by."
Meanwhile, Democrat front-runner Hillary Clinton cautioned against widespread criticism of President Obama for his refusal to say the words radical Islamic terrorism.
"I call it radical jihadist terrorism because it is clearly rooted in Islamic thinking that has to be contested first and foremost by Muslims around the world," Clinton said. "But I think it is a mistake ... to do anything that implies we are at war with an entire religion, with 1.2 or 4 billion people. It is not only wrong, it is dangerous. Right here at home, we need to be reaching out and including Muslim Americans and communities where they live in our first line of defense."
In Arizona – the third largest winner-take-all state in the GOP race – Trump has been popular among voters, as he has called for the ban on Muslims, increased border security and deportation of illegal immigrants in the U.S. The Republican front-runner was supported by Sheriff Joe Arpaio and former Gov. Jan Brewer, and a massive rally in Phoenix showed his strength in the state last summer. His strong showing in Arizona Tuesday may indicate Trump will also do well in neighboring California during its June 7 primary.
With Clinton's win Tuesday, Arizona is seen as yet another stepping stone on her path to the Democratic Party nomination.
In her victory speech Tuesday, Clinton accused Trump and Cruz of "inciting bigotry and violence." She urged her supporters to "reclaim the promise of America for all our people, every single one of them."
"The last thing we need, my friends, are leaders who incite more fear," she said. "In the face of terror, America doesn't panic. We don't build walls or turn our backs on our allies. We can't throw out everything we know about what works and what doesn't and start torturing people. What Donald Trump and Ted Cruz and others are suggesting is not only wrong, it's dangerous. It will not keep us safe. This is a time for America to lead, not cower, and we will lead. ...
"We have to dismantle the global terror pipeline. We have to strengthen our defenses here at home, and we need to work closely with our allies. ... This election really matters. We need to keep working together. We need to make a point that we're going into the future with confidence and optimism. I am the most ready of everybody running to take that job."
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Utah's 40 Republican delegates are assigned proportionally – unless a candidate receives more than 50 percent of the vote.
Former Republican presidential nominee Mitt Romney said he would vote for Cruz in Utah.
"At this stage, the only way we can reach an open convention is for Senator Cruz to be successful in as many of the remaining nominating elections as possible," Romney wrote on his Facebook page, adding: "I will vote for Senator Cruz and I encourage others to do so as well, so that we can have an open convention and nominate a Republican."
According to the poll, 81 percent of Utah Republicans say the GOP is on the wrong track. And 64 percent say Trump as the Republican nominee will weaken the party.
Results will be recorded below as they come in.
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Arizona primary (Republican)
58 Republican delegates – winner take all
With 94 percent reporting:
Trump: 47.1 percent
Cruz: 24.7 percent
Kasich: 10 percent
Arizona primary (Democrat)
75 Democrat delegates – awarded proportionally
With 94 percent reporting:
Clinton: 57.8percent
Sanders: 39.7 percent
Utah Caucuses (Republican)
40 Republican delegates – awarded proportionally
With 85 percent reporting:
Cruz: 69.2 percent
Kasich: 16.9 percent
Trump: 14.0 percent
Utah Caucuses (Democrat)
33 Democrat delegates – awarded proportionally
With 82 percent reporting:
Sanders: 79.7 percent
Clinton: 19.8 percent
Idaho Caucuses (Democrat)
23 Democrat delegates – awarded proportionally
With 100 percent reporting:
Clinton: 21.2 percent
Sanders: 78.0 percent