Beijing has responded, analysts say, by trying to set an anti-American tone for an audience that is worried about jobs and sees Hong Kong as an island of ungrateful citizens.

Related: President Trump said on Thursday that the U.S. would impose a 10 percent tariff on an additional $300 billion worth of Chinese imports next month, significantly escalating the trade war. The S&P 500 lost ground for the fourth straight day, and markets in Asia and Europe fell today.

Debates reveal divisions, if not a favorite

This week’s presidential debates have underlined Democratic divisions over how best to take on President Trump and how aggressive a platform the party should embrace, especially on health care and immigration.

The debates also highlighted Joe Biden’s vulnerability as a front-runner. The former vice president said on Thursday that some criticisms of his record and policies had amounted to attacks on the legacy of former President Barack Obama.

The Daily: Today’s episode examines the rules that will narrow the Democratic debate field.

For you: Confused about which candidate is your type? The Times has a Tinder-like game to help. Start swiping!