Today's 5 things: Donald Trump. Queen Elizabeth. Texas fire

ATF: Texas plant blast was no accident
texas fertilizer plant blast pkg_00000916

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    ATF: Texas plant blast was no accident

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ATF: Texas plant blast was no accident 01:28

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(CNN)Donald Trump heads to DC where he'll be trying

to make new friends and convince Paul Ryan.
Meanwhile, Cameron and the Queen
    were caught on mic being mean.
    And if a kid says he found a lost city, he's lying.
    Today is National Limerick Day. And here are the 5 things you need to know to Get Up to Speed and Out the Door:

    1. Texas plant explosion

    Residents of West, Texas, absorbed a shock three years ago when a fertilizer plant exploded, killing 15 people in a blast so powerful it caused a small earthquake. Yesterday, they got another shock: the fire that caused the explosion was arson. ATF officials said they came to the shocking conclusion after conducting 400 interviews. So who started the fire? They wouldn't comment on that, other than to say "we're headed in the right direction." A $50,000 reward's now on the table.
    ATF: Fire that led to fertilizer blast was criminal act
    west texas explosion cause presser sot _00000502

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      ATF: Fire that led to fertilizer blast was criminal act

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    ATF: Fire that led to fertilizer blast was criminal act 00:58

    2. Campaign 2016

    Donald Trump may be the presumptive GOP nominee, but the #NeverTrump folks ain't giving up that easy. Their latest tactic? Going after The Donald over his still-not-released tax returns. Mitt Romney said Trump's refusal means there must be "a bombshell of unusual size" within them. Trump's campaign was quick to note that Romney didn't exactly rush his returns out to the nearest reporter when he ran. Pot, meet kettle?
    Donald Trump resists calls to disclose his tax returns
    Donald Trump resists calls to disclose his tax returns

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      Donald Trump resists calls to disclose his tax returns

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    Donald Trump resists calls to disclose his tax returns 04:06

    3. Shootings

    One shooting suspect is headed to trial. The other? Not anytime soon. The first, ex-S.C. cop Michael Slager, pleaded not guilty to fatally shooting Walter Scott in the back five times after a traffic stop last year. The other shooting suspect, Robert Lewis Dear, was declared mentally incompetent for trial for the Planned Parenthood clinic shooting in November. Dear's confessed to the killings, telling cops he dreams of being met in heaven by aborted fetuses who'll thank him for his actions. His case is on hold while he undergoes treatment.
    Planned Parenthood shooting suspect ruled incompetent
    Planned Parenthood shooting suspect ruled incompetent

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      Planned Parenthood shooting suspect ruled incompetent

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    Planned Parenthood shooting suspect ruled incompetent 01:17

    4. Iraq attacks

    Nearly 100 people were killed in a series of attacks that targeted Baghdad's Shiites yesterday. At least 64 died when a car bomb went off at a market. Seventeen were killed by a suicide bomber at a busy square. Another car bomb killed 12 at a checkpoint. The culprit? ISIS. Prime Minister Haider al-Abadi is trying his darndest to firm up a government and tackle Iraq's deep economic wounds from years of war. And ISIS is taking full advantage of that security vacuum. Today, suicide bombers hit a police station in another deadly attack.
    Baghdad once again rocked by violence
    Baghdad once again rocked by violence

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      Baghdad once again rocked by violence

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    Baghdad once again rocked by violence 03:32

    5. Hot mics

    Is this thing on? Yes, it was, but Queen Elizabeth obviously didn't know it when she bad-mouthed Chinese officials as "very rude" during President Xi Jinping's first state visit to the U.K. last year. But the Queen wasn't alone. The same day British PM David Cameron was caught on camera telling the Queen that Nigeria and Afghanistan were "fantastically corrupt." Here are other world leaders who also forgot the golden rule of broadcasting.
    British leaders caught on camera
    British leaders caught on camera

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      British leaders caught on camera

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    British leaders caught on camera 01:31

    This just in ...

    Early this morning Brazil's Senate voted to start impeachment proceedings against President Dilma Rousseff. She must step down for up to 180 days as a special committee investigates claims against her.

    BREAKFAST BROWSE

    People are talking about these. Read up. Join in.
    We built this city (or not)
    You know that undiscovered Maya city that a Canadian teen found? Experts -- and they ought to know -- think it's nothing more than an abandoned field.
    Selfie-sh act
    A man -- camera in hand, hoping to get the perfect selfie -- climbed onto a 126-year-old statue in Portugal ... and promptly broke it into a dozen pieces.
    The remnants of King D. Sebastiao's statue
    She needs an invisibility cloak
    Hermione's a tax cheat? Say it ain't so! No, but actress Emma Watson apparently used the Panama Papers firm to set up an offshore company.
    Traffic alert
    America: Stay off the roads Fridays at 6 p.m. in August because that's when road rage is at its peak, so says Instagram (which, BTW, has a new icon).
    It takes a village
    There are no locks in the small Indian village of Shani Shingnapur. In fact, there are no doors. And yet, there's been no theft there for 400 years.​

    WHAT'S FOR LUNCH

    Here's what's happening today.
    Meeting of the minds
    This should be fun. Mr. Trump goes to Washington today to meet the GOP "establishment," including House Speaker Paul Ryan.
    Number of the day
    1,400
    The number of pain pills that ex-NFL QB Ray Lucas was taking each month after suffering a football injury. He shared his story last night during a CNN town hall on the opioid painkiller epidemic in the United States.