Here's a roundup of news trending across the nation and world today.

What to know now:

1. Trump wins big; Hillary upset: Tuesday was primary day and Donald Trump ran up his delegate count as he won three of the four Republican contests. Trump took Michigan, Mississippi and Hawaii, while Ted Cruz won in Idaho. On the Democratic side, Hillary Clinton won Mississippi, but was upset in Michigan by Bernie Sanders.

2. George Martin dies: George Martin, the man who produced the work of the Beatles, has died. Martin, who was known as the "fifth Beatle," was 90. Paul McCartney said he thought of Martin as a "second father."

>> Read more trending stories  

3. Democratic debate: Bernie Sanders and Hillary Clinton will meet tonight in Miami for the next Democratic debate. With some saying the tone of the last debate turned a bit ugly and with Sanders surprise Michigan win, there could be some fireworks in the Sunshine State. Florida holds its primary next Tuesday.

4. Criticizing Palestinians: Vice President Joe Biden had harsh words Wednesday for the Palestinian leader Mahmoud Abbas as his government praised the person who stabbed and killed three people – including an American student. Biden was visiting Israel with his family and was not far from the spot of the attack when it happened.

5. Cosby's wife: Bill Cosby's wife testified in a civil case last month that she had never read a 2005 deposition given by her husband where he admitted that he drugged women he was planning to have sex with. The acknowledgment  came as Camille Cosby testified in a libel case that was filed against her husband.

And one more

Iran reportedly fired two ballistic missiles Wednesday, and one the day before. According to reports, the missiles fired Wednesday had the phrase "Israel must be wiped out" written in Hebrew on them. The Iranians have continued to test missiles despite U.S. objections.

In case you missed it

Man from Georgia – the one between Russia and Turkey – definitely has talent.