Exclusive: Is Donald Trump's Endgame the Launch of Trump News?  —  The candidate is considering starting his own cable empire.  —  Every election cycle has its own breakout media star.  In 1992, it was CNN.  A few years later, it would be an e-mail blast called the Drudge Report.

Family of AR-15 Inventor Eugene Stoner: He Didn't Intend It for Civilians  —  Once Banned, These Assault Rifles Are Hugely Popular in the U.S. 0:52  —  The AR-15 is the most talked about gun in America.  —  But the AR-15's creator died before the weapon became a popular hit and his family has never spoken out.

Jo Cox MP critically injured amid shooting reports  —  An MP is in a critical condition after suffering serious injuries in an apparent shooting and stabbing attack in her constituency.  —  Unconfirmed reports suggest Jo Cox, Labour MP for Batley and Spen, was shot and stabbed.

Orlando terrorist's chilling Facebook posts from inside club revealed  —  EXCLUSIVE: In the hours after he blasted his way into an Orlando gay nightclub, and with his victims lying dead or wounded around him, Omar Mateen took to Facebook to pledge his loyalty to ISIS and threaten more attacks …

Poll shows Clinton, Grassley leading in Iowa  —  Hillary Clinton leads Donald Trump by 3 percentage points in Iowa, according to a survey of registered voters conducted this month by the Democratic firm Public Policy Polling.  —  Clinton, the presumptive Democratic presidential nominee …

Kasich on Trump: 'I just can't do it'  —  John Kasich is in agony over his decision last year to support the eventual Republican nominee and the current reality that Donald Trump is his party's presumptive standard-bearer.  —  “You know, it's painful.  It's painful.  You know, people even get divorces, you know?

AMERICAN RETIREES ARE LIVING OFF OF GUN SALES.  —  Some of the largest investors in gun companies are average Americans who own index funds in their workplace retirement plans.  If you have a 401(k) plan with Vanguard Group, in all likelihood you own gun stocks — and you've done well off it.

Trump's relationship with RNC sours  —  Donald Trump is relying heavily on the Republican Party to bolster his skeletal operation, but his campaign's relationship with the Republican National Committee is increasingly plagued by distrust, power struggles and strategic differences, according to sources in both camps.

Trump's campaign hits a wall  —  's campaign for the White House is teetering amid dismal poll numbers, racially tinged controversies and a rising chorus of criticism from within the GOP.  —  After knocking Sen. Ted Cruz  —  (R-Texas) out of the primary in May, Trump picked up momentum and made strides in unifying the party.

Bernie Sanders Not Being Vetted as Hillary Clinton's Running Mate  —  Massachusetts Sen. Elizabeth Warren is among a group of Democratic officials being considered  —  Hillary Clinton's campaign isn't considering primary rival Bernie Sanders as her running mate, but is actively looking …

Donald Trump Accused of Using His Charity as a Political Slush Fund  —  When the presumptive GOP nominee doled out money to veterans' groups over the past few months, he did so using the Trump Foundation—which, according to FEC rules, is not allowed.  —  The Trump Foundation …

EXCLUSIVE: Oprah Winfrey Endorses Hillary Clinton in Upcoming Election: 'It's a Seminal Moment for Women'  —  Oprah Winfrey is throwing her support behind Hillary Clinton.  —  Winfrey spoke with ET's Nancy O'Dell at the premiere of her new OWN drama, Greenleaf, and the media mogul opened …

WATCH: Mizzou race activist hijacks Orlando vigil as gay community rebukes her  —  UPDATED  —  ‘Multicultural’ official scolds whites who preach unity  —  A vigil Monday planned by several University of Missouri student organizations was supposed to honor victims of Sunday morning's deadly shooting rampage …

Global Warming Skeptic Responds To Massachusetts AG's Subpoena: ‘F**k Off, Fascist’  —  Alex Epstein had a terse response to a subpoena sent by Massachusetts Attorney General Maura Healey Wednesday.  —  Healey demanded the oil giant ExxonMobil hand over 40 years of documents …

Gun sales surge among gays, lesbians after Orlando shooting … DENVER — Gun sales are surging in the wake of Sunday's deadly mass shooting in Orlando, Fla. The tragedy is generating new debate over gun control reform and the right to bear arms.  —  Gun shops typically see a spike in customers after mass shootings.

It seems that Donald Trump doesn't really like being called ‘The Donald’  —  It was in the pages of Spy magazine, the periodical that gave the world “short-fingered vulgarian,” that we first learned of Ivana Trump's nickname for her husband: The Donald.  As Spy had it in a 1989 profile …

House to Vote on Curbing NSA Surveillance in Wake of Orlando  —  Massie amendment requires court orders for certain searches  —  Opponents argue it would prevent searches for Orlando shooter  —  An internal Republican fight is emerging over an anti-surveillance amendment passed by the House each …

U.S. officials say American Muslims do report extremist threats  —  Muslim-Americans have repeatedly informed authorities of fellow Muslims they fear might be turning to extremism, law enforcement officials say, contrary to a claim by presumptive Republican presidential nominee Donald Trump this week.

Clinton to unleash TV hell on Trump  —  Hillary Clinton is opening her wallet and seizing the moment.  —  Just hours after the votes were cast in the final Democratic primary, the Clinton campaign started reserving advertising blocks in eight battleground states on Wednesday …

Donald Trump calls her ‘Crooked Hillary,’ but his fans just say ‘b—  ’  —  GREENSBORO, N.C. — As thousands of Donald Trump supporters streamed out of an evening rally here this week, they walked past a handful of vendors from Ohio selling simple white T-shirts featuring Hillary Clinton, Monica Lewinsky and a vulgar joke.

An out-of-the-way site in Paradise Valley  —  Trump's insurgent GOP run has invited numerous comparisons with Goldwater's doomed bid.  Like Trump, Goldwater upended the Republican establishment in the primaries but faced a difficult general-election landscape.

Craigslist ad threatens Orlando-style massacre in San Diego  —  SAN DIEGO - Police are investigating an online threat of violence to San Diego's LGBT community that read: “You're next.”  —  On Tuesday evening, a 10News viewer saw the post in the men-seeking-men section of the Craigslist San Diego personal ads.