A dangerous heatwave has hit parts of Europe with officials claiming that thousands of lives could be at risk this week. Temperatures may hit record levels in 15 different regions Tuesday as record temperatures are expected in the U.K., France, Greece, and Spain -- countries where only 1% of their residents have air conditioning. Wildfires have blazed through France, Spain, Portugal, and Greece over the past week as the heatwave has drawn renewed efforts to address climate change.

SEE THE IMPACT OF CLIMATE CHANGE ON MASS HEATWAVES

Twitter accused Elon Musk of trying to "slow walk" the company's lawsuit to hold him to his $44 billion takeover and urged a September trial to ensure deal financing remains in place, according to a court filing. Twitter has sued Musk and asked a Delaware judge to order him to complete the merger at the agreed price of $54.20 per share. The company said if Musk is ordered to close the deal it could still take months of additional litigation to close the debt-financing agreement..

FIND OUT WHERE THE TWO SIDES STAND ON A COURT DATE

The Mega Millions lottery jackpot has gone unclaimed for more than three months, growing to an estimated $530 million with a cash value of $304.7 million. The jackpot was last won on April 15, when a player from Tennessee walked away with $20 million. If the $530 million prize is won on Tuesday, it will become the eighth largest jackpot in Mega Millions history. The next drawing will be held at 11 p.m. ET Tuesday.

How much was the largest Mega Millions jackpot ever awarded?

Monday's answer: Franklin D. Roosevelt was the first US president to visit the Middle East, attending three World War II conferences and another to forge a relationship with the new kingdom of Saudi Arabia.