First Read"s Morning Clips: Tragedy in Dallas

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TRAGEDY IN DALLAS.

NBC News: "Downtown Dallas was in lockdown early Friday after snipers shot 11 officers, five fatally, during a protest over deadly police shootings of black men elsewhere. Three people were in custody and a fourth suspect exchanged gunfire with authorities in a parking garage at El Centro Community College into the morning, Dallas Police Chief David Brown said."

Obama, on the Dallas attack: "President Barack Obama said Friday that America is "horrified" by what appears to be a planned sniper shooting targeting police officers in Dallas, and he said there is no justification for the violence. In a brief statement to reporters, Obama said the investigation into the shooting continues but "what we do know is there has been a vicious, calculated and despicable attack on law enforcement," he said."

Trump tweeted: "Prayers and condolences to all of the families who are so thoroughly devastated by the horrors we are all watching take place in our country"

NBC News describes what witnesses of the attacks saw.

Details are emerging in the shooting death of Philando Castile in Minnesota as protests continued overnight.

OFF TO THE RACES: Clinton ramps up her VP search

CLINTON: "The State Department is reopening its internal review of Hillary Clinton"s use of email now that the Department of Justice has completed their investigation, a department spokesman said Thursday evening," NBC reports.

House Republicans are pushing for a new investigation into Hillary Clinton"s email focused on whether she lied to Congress.

Clinton and Biden will campaign together in Scranton.

She"ll address recent police shootings today in Philadelphia (the speech was planned before the shootings in Dallas.)

NBC"s Monica Alba writes that Clinton ramped up her VP search with a day of meetings with top aides in Washington.

She"s expected to pick up Sanders"s endorsement next week.

TRUMP: Byron York on how Trump speaks, and why the political class doesn"t understand the appeal of his style.

From the New York Times: "Presented in a recent interview with a scenario, floating around the political ether, in which the presumptive Republican nominee proves all the naysayers wrong, beats Hillary Clinton and wins the presidency, only to forgo the office as the ultimate walk-off winner, Mr. Trump flashed a mischievous smile. "I"ll let you know how I feel about it after it happens," he said minutes before leaving his Trump Tower office to fly to a campaign rally in New Hampshire."

He had a tense exchange with Senate Republicans on the Hill yesterday.

More, from the Washington Post: "During a closed-door meeting with Republican senators on Capitol Hill, Trump admonished three of them who were not backing him as the presumptive GOP nominee. He characterized Sen. Mark Kirk of Illinois as a loser and singled out Sen. Ben Sasse of Nebraska for opposing him, according to officials with direct knowledge of the exchanges."

NBC"s Kelly O"Donnell reports that Christie is traveling with Trump on his trip to Florida.

Ted Cruz will speak at the Republican National Convention, but he"s not endorsing Trump yet.

Source: http://www.nbcnews.com/politics/first-read/first-read-s-morning-clips-tragedy-dallas-n605861