Google, Facebook, Twitter and other major tech companies met with U.S. government officials on Wednesday to discuss their plans to counter disinformation on social media in the run-up to the November election.

Colin Pate was toiling away at his North Philadelphia recording studio in late June when he received an unbelievable text message: "Secret show at Johnny Brenda's tonight, 6:30."

Updated at 7:38 p.m. ET

Presumptive Democratic presidential nominee Joe Biden and his newly named running mate, Sen. Kamala Harris of California, made their first joint appearance Wednesday following Biden's announcement of the selection a day earlier.

Joe Biden picked California Sen. Kamala Harris to be his vice presidential running mate.

It's a historic pick. But there's a lot more to it than that.

Here are five takeaways:

1. Biden picking Harris is a statement on what it means to be American.

Biden picking Harris as his running mate is historic. No Black or South Asian American woman has ever been on a major-party ticket in U.S. history. Black voters, especially Black women, are pillars of the Democratic Party and were key to Biden's victory in the contest for the nomination.

President Trump wants to give a $100 billion boost to the U.S. economy by hitting the "pause" button on workers' payroll taxes.

That would leave more money in people's paychecks. But the move — which Trump ordered over the weekend — is only temporary. And that could produce headaches down the road for workers, employers and the Social Security system.

Updated at 7 p.m. ET

Former Vice President Joe Biden, the presumptive Democratic presidential nominee, has picked Sen. Kamala Harris of California as his running mate.

The selection will make Harris the third woman and first Black and first Asian American candidate to be nominated for vice president by a major political party.