WNBA players wore T-shirts on Tuesday endorsing the Democratic opponent of Sen. Kelly Loeffler, the co-owner of the Atlanta Dream who has criticized the league for dedicating its season to the Black Lives Matter movement.

What's happening: The shirts had "Vote Warnock" printed on them, a reference to Atlanta pastor Raphael Warnock, one of the top Democrats running against Loeffler in a special election in November.

Confidants of Joe Biden believe his choices for vice president have narrowed to Sen. Kamala Harris and Susan Rice — and would be surprised if he picks anyone else.

The state of play: This is a snapshot of the nearly unanimous read that we get from more than a dozen people close to him.

The coronavirus will make the 2020 presidential election different from any in modern history: Voting that begins earlier, results that take longer, mail carriers as virtual poll workers and October Surprises that pop in September.

The big picture: Perhaps 80 million Americans will vote early, by mail or in person, Tom Bonier, CEO of TargetSmart, a Democratic political data firm, tells Axios. That's going to set up more of an Election Season than an Election Day — and increase the odds of national turmoil over the vote count.

House Republican Leader Kevin McCarthy (R-Calif.) has given his GOP colleagues new marching orders for stump speeches between now and November, as incumbents worry about how President Trump's own challenges may strain their re-election bids.

Driving the news: McCarthy delivered a PowerPoint presentation to the GOP conference in person last Thursday at the Capitol Visitor Center, with several members joining via Zoom, lawmakers and aides familiar with the gathering tell Axios.

Joe Biden's campaign is launching a $280 million TV and digital ad campaign heading into the fall, targeting 15 states with a message — delivered directly from Biden — about the coronavirus pandemic and the economy.

Why it matters: The size of the buy, which advisers described on a call with reporters Tuesday night, signals a campaign that isn't worried about burning through cash — and it may force the Trump campaign, or associated super PACs, to increase their spending in response.

1. Global: Total confirmed cases as of 3:30 a.m. ET: 18,543,662 — Total deaths: 700,714 — Total recoveries — 11,143,031— Map.
2. U.S.: Total confirmed cases as of 3:30 a.m. ET: 4,771,236 — Total deaths: 156,807 — Total recoveries: 1,528,979 — Total tests: 57,543,852 — Map.
3. States: New York City health commissioner resigns in protest of De Blasio's coronavirus response — Local governments go to war over schools.
4. Public health: 59% of Americans support nationwide 2-week stay-at-home order in NPR poll.
5. Politics: Trump's national security adviser returns to work after coronavirus recovery — Republicans push to expand small business loan program.
6. Sports: Indy 500 to be held without fans — Rafael Nadal opts out of U.S. Open.

Missouri residents on Tuesday voted for Medicaid expansion for low-income adults by a majority of 52%, AP reports.

Why it matters: Some 230,000 Missourians will benefit from the measure, which marks the sixth time voters have gone against a resistant Republican-led Legislature, Politico notes. It's the 38th state to back the expansion under former President Obama's signature health care law, AP notes. It comes amid the backdrop of a pandemic that's seen over 54,000 cases and more than 1,200 deaths from COVID-19 in Missouri.

Go deeper: The effect of Medicaid expansion on the uninsured

Progressive challenger Cori Bush, who featured in the Netflix documentary "Knock Down the House," defeated Rep. William Lacy Clay (D-Mo.) in the Democratic primary late Tuesday, AP reports.

Why it matters: She'd be the first Black Congress member to represent Missouri if she were elected to the House in November, per the New York Times. Clay, who's been in office for nearly 20 years, beat Bush in 2018. The former homeless woman, now a nurse and ordained pastor, led protests in Ferguson, Missouri, over the 2014 fatal police shooting of Black teen Michael Brown. Bush was endorsed by Sen. Bernie Sanders (I-Vt.) and Rep. Alexandria Ocasio-Cortez (D-N.Y.).

Editor's note: This article has been updated with new details throughout..

Rep. Roger Marshall won the Kansas Republican Senate primary on Tuesday evening, beating former Secretary of State Kris Kobach and a slew of other candidates, AP reports.

Why it matters: Following GOP Sen. Pat Roberts' retirement announcement, some Republicans worry that if Kobach won the primary it would endanger the party's chances of keeping the seat and maintaining a majority in the Senate.

Primary elections on Tuesday in fives states see crowded fields of both Republicans and Democrats hoping to make the ballot in 2020.

What to watch: Rep. Rashida Tlaib (D-Mich.) is "fighting for her political life" in a tight primary race against Detroit City Council President Brenda Jones, who Tlaib beat by 900 votes in 2018, The New York Times writes. Senate Republicans are also watching the primary race in Kansas to see who could replace retiring Republican Sen. Pat Roberts.

A bipartisan group of governors has joined the Rockefeller Foundation to deliver 3 million rapid coronavirus antigen tests to slow the spread of COVID-19 and help states safely reopen, the nonprofit announced Tuesday.

Why it matters: With no national plan, the initiative with Maryland Gov. Larry Hogan (R), Louisiana Gov. John Bel Edwards (D), Massachusetts Gov. Charlie Baker (R), Michigan Gov. Gretchen Whitmer (D), Ohio Gov. Mike DeWine (R), and Virginia Gov. Ralph Northam (D) would be the first coordinated testing strategy in the U.S.