• Lawmakers traded blame as the U.S. Congress reconvened for a rare weekend session to try to resolve the government shutdown that began Saturday.

President Trump began the day by advising Senate Republicans to use the so-called nuclear option: Change Senate rules to require only a simple majority and cut Democrats out of the process if necessary.

Here’s what a shutdown looks like, and here’s how it could hurt the economy.

And in a reprise of last year’s Women’s March, hundreds of thousands of demonstrators marched across the U.S. and beyond, including in Sydney and Melbourne, to show their support for women’s rights and opposition to Mr. Trump’s policies.