July 23, 2014

This year's mayfly hatch in the Mississippi River reached Biblical proportions.

The mayfly emergence is an annual event in which mayflies leave the Mississippi River after one or two years of incubation. The flies live for up to 36 hours before they return to the water, lay a new crop of eggs, and die.

The La Crosse, Wisconsin branch of the National Weather Service (NWS) reports that the mayflies caused a three-vehicle car crash as they descended over the town. The flies caused a bow echo on the NWS radar, which normally occurs during heavy rains, and proceeded to make a Wisconsin road slick, causing a driver to lose control of her car. Two people were injured in the crash, and one was treated at a local hospital.

Wisconsin residents captured some stunning — read: horrifying — images of the mayfly emergence, which happened on Sunday night. Check out the swarm below. --Meghan DeMaria

8:14 a.m. ET

Shortly after Donald Trump all but clinched the GOP nomination with his victory in the Indiana primary Tuesday night, Sen. Elizabeth Warren (D-Mass.) unleashed a full line of attacks. Warren hit Trump on everything from his "racism, sexism, and xenophobia" to his "nonsensical national security ideas" before vowing to fight tooth and nail to make sure that Trump never reaches the Oval Office:

Becca Stanek

7:52 a.m. ET
Chris Graythen/Getty Images

The legendary musician Prince was trying to meet with a doctor about a painkiller addiction the day before he died, the Minneapolis Star Tribune reports. Representatives of Prince reached out to Dr. Howard Kornfeld on the night of April 20 and told him Prince was "dealing with a grave medical emergency."

While Howard Kornfeld could not clear his schedule to fly out the next day, he sent his son, Andrew Kornfeld, ahead of him and planned to follow later. When Andrew Kornfeld arrived at Paisley Park at 9:30 a.m. on Thursday, Prince's representatives were unable to locate Prince. Andrew Kornfeld was one of three people who discovered the musician unconscious in an elevator, and it was Andrew who placed the 911 call.

Painkillers were also discovered at the scene — investigators are actively working to learn how Prince got the pills, and who provided them.

Sources said it was hoped Prince would agree to travel to California for round-the-clock support at Kornfeld's renowned clinic, the Star Tribune reports. Six days before his death, Prince's plane made an emergency landing; those with direct knowledge of the situation said the landing occurred because Prince was overdosing on opioids. Jeva Lange

7:22 a.m. ET
Eduardo Munoz Alvarez/AFP/Getty Images

With Ted Cruz out of the presidential race, there is little doubt remaining that Donald Trump will be the Republican nominee. Looking ahead to a general election, however, Trump does not fair well against either Democratic candidate.

In a new CNN/ORC poll completed before Tuesday's primary results in Indiana, Clinton led Trump by 54 percent to 41 percent — the 13-point advantage being her largest lead since last summer. The results found that Bernie Sanders has an even bigger edge on Trump, beating him by 16 points.

John Kasich — whose odds at becoming the Republican nominee are nearly insurmountable — actually beats Clinton in the polls, and sits only 4 points behind Sanders.

The poll surveyed 1,001 adults and among them, 890 registered voters, and had a margin of error of plus or minus 3.5 points for the results of the registered voters. The poll was conducted between April 28 and May 1. Jeva Lange

5:19 a.m. ET

On Monday night's Jimmy Kimmel Live, Kimmel devoted a segment of the show to debunking Sarah Palin and other climate change deniers. He said then he knew he would get "beaten over the head" for the bit, and on Tuesday's show, he read some of the comments. Social media is a double-edged sword, he began, noting that before Twitter and Facebook, people had to send nasty comments through the mail, while now "they can go online and torpedo that rage directly at me immediately."

With the explanation of social media out of the way, Kimmel read a "sampling of the warm sentiments I received, and I just want to say up front, it might seem like I only pick comments from people whose grammar is bad, but the truth is, the vast majority of the negative comments came from people whose grammar is bad." If you've ever taken the time to read the comments section of any website, you've seen worse, but there are some doozies. Kimmel ended on a pretty dark note, though: "Some of it got me kind of mad, the ignorance, but ultimately, I have to say, after reading all this, I'm now kind of okay with global warming wiping out the human race. It turns out we deserve it." Watch. Peter Weber

4:18 a.m. ET

Tuesday's Late Show taped before Stephen Colbert learned that Donald Trump won the Indiana Republican primary and Ted Cruz dropped out of the race. "But I do know that it was do-or-die for Sen. Ted Cruz — and judging by this picture, I'm going to say he died about a week ago," he said. Instead of talking about future events, Colbert looked at what ended up being Cruz's last stand, including his getting stomped by quick-witted Trump supporters in Indiana and Trump's own conspiracy theory, unveiled Tuesday morning, that Cruz's father met with Lee Harvey Oswald soon before Oswald assassinated President John F. Kennedy, based on a report in the National Enquirer.

"This is horrible — and not just for Cruz," Colbert said. "Oliver Stone is kicking himself for not thinking of this." But instead of just laughing at Trump, he had a better conspiracy theory that blows Trump's Cruz-JFK aspersions out of the water — and if you watch until the end, he gets an assist from Cruz himself, and Back to the Future. Peter Weber

1:30 a.m. ET

The city of Fort McMurray in Alberta, Canada, was evacuated Tuesday due to an out-of-control wildfire that officials say has doubled to 10,000 square miles in one day.

With 60,000 people affected, it is the largest wildfire evacuation in the history of the province, CBC News reports. Fort McMurray is about 270 miles northeast of Edmonton, and homes in at least two neighborhoods have been destroyed. Hot and dry conditions contributed to the fire, but once the wind started, the fire quickly spread.

Darby Allen, the fire chief for the Wood Buffalo regional municipality, told CBC News that Tuesday was the "worst day of my career." The fire is "ugly" and "nasty," he added, and "hasn't shown any forgiveness." The military is waiting for a request to help fight the fire, CBC News reports, and with high wind gusts expected on Wednesday, the burning will likely be more intense. Catherine Garcia

1:09 a.m. ET
Don Emmert/AFP/Getty Images

Republican National Committee head Reince Priebus has declared Donald Trump the "presumptive GOP nominee" and is trying to rally his party around the hashtag #NeverHillary. But the Republicans resolutely opposed to Trump are sticking with #NeverTrump, and they have vowed to keep on keeping on, even though they just lost their last real shot to deprive Trump of the nomination. You can argue that their tactics were ineffective, but nobody can say they didn't try. In total, CNN's Gregory Wallace reports, Republicans ran more than $70 million in broadcast television ads during the campaign, or 64,000 different ads.

In his victory speech on Tuesday night, Trump criticized the steady stream of #NeverTrump ads in Indiana, saying he asked his advisers, "how can anyone endure this?" (Of course, since it was a victory speech, Trump was answering his own question.) The $75.7 million in TV ad spending, as counted by Kantar Media/CMAG, includes all ads run against Trump during the campaign, by all the candidates and their super PACs; Marco Rubio's supporters at Conservative Solutions PAC spent the most, some $19.7 million, followed by pro-Jeb! group Right to Rise, at nearly $10 million.

The main obstacle that thwarted the Stop Trump movement is that "you can't beat someone with no one," says Chris Cillizza at The Washington Post. "Many Republicans are scared of what Trump might do as the GOP nominee. But they viscerally hate Cruz and simply could not bring themselves to be for him." Peter Weber

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