President Trump announced Wednesday night that the U.S. will resume testing nuclear weapons.

Why it matters: The U.S. hasn't conducted a nuclear test since 1992. If Trump follows through on the decision to resume testing, it could reignite a superpower arms race.

The intrigue: Trump made the announcement only an hour before he was scheduled to sit down with Chinese President Xi Jinping.

What he's saying: "The United States has more Nuclear Weapons than any other country. This was accomplished, including a complete update and renovation of existing weapons, during my First Term in office," Trump posted on Truth Social. • "Because of the tremendous destructive power, I HATED to do it, but had no choice! Russia is second, and China is a distant third, but will be even within 5 years."

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