⁍ This is the 15th edition of our weekly power rankings of politicians most likely to be chosen as Joe Biden’s Democratic running mate in 2020.

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⁍ The window for Biden to actually make a decision and then announce it will be much closer to the start of the Democratic National Convention on August 17.

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– There’s still no official word from Joe Biden about who he’ll pick to be his Democratic running mate in 2020, but Nate Silver at FiveThirtyEight thinks he has a pretty good idea who will be on the ticket. “I think Biden has narrowed it down to four people,” Silver writes. Those four: Massachusetts Sen. Elizabeth Warren, New Mexico Gov. Michelle Lujan Grisham, California Rep. Karen Bass, Rhode Island Gov. Gina Raimondo, and Illinois Sen. Tammy Duckworth. Silver says all four “seem obvious,” but he’s “still skeptical that Biden picks a white woman as his running mate, but if he does go that route, the Massachusetts senator is probably first in line.” Duckworth, for example, “continues to get massive amounts of national media attention following the attacks against her by Fox News anchor Tucker Carlson,” Silver writes. “One thing to consider in terms of Bass’ unique appeal: She would fulfill Biden’s interest in naming a woman of color while also making liberals, who love Bass, happy.”