U.S. accuses Iran of launching drone strikes against Saudi Arabian oil plant; California governor expected to sign new legislation for independent workers. Source

The White House has been talking to a trio of lawmakers who all support tougher background checks Source

Tropical storm Humberto is expected to become a hurricane within the next 24 hours. Jeff Berardelli reports. Source

The U.S. is accusing Iran of an attack on Saudi Arabia’s largest oil plants, after multiple drones bombed production fields. The attack destroyed the source of an estimated 8 million barrels of crude oil produced there every day, which is about 10% of the world’s daily supply of crude oil. Roxana Saberi reports. Source

The Trump administration is expected to announce its proposal to curb gun violence as soon as next week. After the Democrats debated gun control in Houston, it is unclear what President Trump will support. Ben Tracy reports. Source

California Governor Gavin Newsom is expected to sign new legislation intended to help the Legion of Independent Workers in the so-called gig economy. The law would make “gig workers” eligible for benefits. But companies like Uber, Lyft, and Doordash are spending big, trying to put the brakes on the bill. Carter Evans reports. Source

According to police, the son of one of the parents involved arrived at the scene with a handgun and started shooting Source

Relief efforts in the devastated Bahamas have stopped and airports have closed due to tropical storm Humberto. More than 2,000 people are living in shelters after their homes have been destroyed. At least 50 people are dead and 1,300 are still reported missing. Source

Here’s a look at the top stories making headlines on the “CBS Evening News with Norah O’Donnell.” Source

“We’re not all as lucky as Bill Maher. We don’t all have a sense of superiority that burns 35,000 calories a day” Source